diff --git a/include/kyosu/functions/acos.hpp b/include/kyosu/functions/acos.hpp
index e8d9a689..9408f04d 100644
--- a/include/kyosu/functions/acos.hpp
+++ b/include/kyosu/functions/acos.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/details/cayleyify.hpp>
 #include <kyosu/functions/is_real.hpp>
diff --git a/include/kyosu/functions/acosh.hpp b/include/kyosu/functions/acosh.hpp
index 9fe168e7..3b99d149 100644
--- a/include/kyosu/functions/acosh.hpp
+++ b/include/kyosu/functions/acosh.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/details/cayleyify.hpp>
 #include <kyosu/functions/to_complex.hpp>
diff --git a/include/kyosu/functions/acospi.hpp b/include/kyosu/functions/acospi.hpp
index 95ecc12a..2eac1187 100644
--- a/include/kyosu/functions/acospi.hpp
+++ b/include/kyosu/functions/acospi.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 #include <kyosu/functions/acos.hpp>
diff --git a/include/kyosu/functions/acot.hpp b/include/kyosu/functions/acot.hpp
index e4d7ff0b..50e1ce4f 100644
--- a/include/kyosu/functions/acot.hpp
+++ b/include/kyosu/functions/acot.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/atan.hpp>
 #include <kyosu/functions/rec.hpp>
diff --git a/include/kyosu/functions/acoth.hpp b/include/kyosu/functions/acoth.hpp
index 9ca4b881..b3a4c485 100644
--- a/include/kyosu/functions/acoth.hpp
+++ b/include/kyosu/functions/acoth.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/atan.hpp>
 #include <kyosu/functions/rec.hpp>
diff --git a/include/kyosu/functions/acotpi.hpp b/include/kyosu/functions/acotpi.hpp
index 47df91f6..319b4530 100644
--- a/include/kyosu/functions/acotpi.hpp
+++ b/include/kyosu/functions/acotpi.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 #include <kyosu/functions/acot.hpp>
diff --git a/include/kyosu/functions/acsc.hpp b/include/kyosu/functions/acsc.hpp
index 681a93a2..8a213f85 100644
--- a/include/kyosu/functions/acsc.hpp
+++ b/include/kyosu/functions/acsc.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/asin.hpp>
 #include <kyosu/functions/rec.hpp>
diff --git a/include/kyosu/functions/acsch.hpp b/include/kyosu/functions/acsch.hpp
index 028f87e4..544e221b 100644
--- a/include/kyosu/functions/acsch.hpp
+++ b/include/kyosu/functions/acsch.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/asinh.hpp>
 #include <kyosu/functions/rec.hpp>
diff --git a/include/kyosu/functions/acscpi.hpp b/include/kyosu/functions/acscpi.hpp
index cbe09d97..2f298c79 100644
--- a/include/kyosu/functions/acscpi.hpp
+++ b/include/kyosu/functions/acscpi.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 #include <kyosu/functions/acsc.hpp>
diff --git a/include/kyosu/functions/airy_ai.hpp b/include/kyosu/functions/airy_ai.hpp
index 9c08a3d0..4d6a938c 100644
--- a/include/kyosu/functions/airy_ai.hpp
+++ b/include/kyosu/functions/airy_ai.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/airy_bi.hpp b/include/kyosu/functions/airy_bi.hpp
index d5368d3f..6e304632 100644
--- a/include/kyosu/functions/airy_bi.hpp
+++ b/include/kyosu/functions/airy_bi.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/asec.hpp b/include/kyosu/functions/asec.hpp
index 25f8e940..133011d0 100644
--- a/include/kyosu/functions/asec.hpp
+++ b/include/kyosu/functions/asec.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/acos.hpp>
 #include <kyosu/functions/rec.hpp>
diff --git a/include/kyosu/functions/asech.hpp b/include/kyosu/functions/asech.hpp
index 4a5a3062..a8bb4ab4 100644
--- a/include/kyosu/functions/asech.hpp
+++ b/include/kyosu/functions/asech.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/acosh.hpp>
 #include <kyosu/functions/rec.hpp>
diff --git a/include/kyosu/functions/asecpi.hpp b/include/kyosu/functions/asecpi.hpp
index dbe7d348..0c991af2 100644
--- a/include/kyosu/functions/asecpi.hpp
+++ b/include/kyosu/functions/asecpi.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 #include <kyosu/functions/asec.hpp>
diff --git a/include/kyosu/functions/asin.hpp b/include/kyosu/functions/asin.hpp
index 8399b292..688a4eff 100644
--- a/include/kyosu/functions/asin.hpp
+++ b/include/kyosu/functions/asin.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/asinh.hpp b/include/kyosu/functions/asinh.hpp
index bcb591e8..40e04017 100644
--- a/include/kyosu/functions/asinh.hpp
+++ b/include/kyosu/functions/asinh.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/details/cayleyify.hpp>
 #include <kyosu/functions/asin.hpp>
diff --git a/include/kyosu/functions/asinpi.hpp b/include/kyosu/functions/asinpi.hpp
index e52d2a9a..89da0bbe 100644
--- a/include/kyosu/functions/asinpi.hpp
+++ b/include/kyosu/functions/asinpi.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 #include <kyosu/functions/asin.hpp>
diff --git a/include/kyosu/functions/atan.hpp b/include/kyosu/functions/atan.hpp
index 841ce567..8c8f5e11 100644
--- a/include/kyosu/functions/atan.hpp
+++ b/include/kyosu/functions/atan.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/atanh.hpp>
 #include <kyosu/functions/to_complex.hpp>
diff --git a/include/kyosu/functions/atanh.hpp b/include/kyosu/functions/atanh.hpp
index f5b19952..5343a97e 100644
--- a/include/kyosu/functions/atanh.hpp
+++ b/include/kyosu/functions/atanh.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 #include <kyosu/functions/is_nan.hpp>
diff --git a/include/kyosu/functions/atanpi.hpp b/include/kyosu/functions/atanpi.hpp
index c32f9996..37ba27d6 100644
--- a/include/kyosu/functions/atanpi.hpp
+++ b/include/kyosu/functions/atanpi.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 #include <kyosu/functions/atan.hpp>
diff --git a/include/kyosu/functions/average.hpp b/include/kyosu/functions/average.hpp
index 033b47f6..233eaf8a 100644
--- a/include/kyosu/functions/average.hpp
+++ b/include/kyosu/functions/average.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 
diff --git a/include/kyosu/functions/beta.hpp b/include/kyosu/functions/beta.hpp
index 14f7499b..0f9117bb 100644
--- a/include/kyosu/functions/beta.hpp
+++ b/include/kyosu/functions/beta.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 #include <kyosu/functions/tgamma.hpp>
diff --git a/include/kyosu/functions/ceil.hpp b/include/kyosu/functions/ceil.hpp
index 6134b1ef..8a599415 100644
--- a/include/kyosu/functions/ceil.hpp
+++ b/include/kyosu/functions/ceil.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/cos.hpp b/include/kyosu/functions/cos.hpp
index c0987536..b24b6b8d 100644
--- a/include/kyosu/functions/cos.hpp
+++ b/include/kyosu/functions/cos.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/cosh.hpp>
 #include <kyosu/functions/muli.hpp>
diff --git a/include/kyosu/functions/cosh.hpp b/include/kyosu/functions/cosh.hpp
index 1dcd7547..4c5659dd 100644
--- a/include/kyosu/functions/cosh.hpp
+++ b/include/kyosu/functions/cosh.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/is_real.hpp>
 #include <kyosu/functions/is_not_finite.hpp>
diff --git a/include/kyosu/functions/cospi.hpp b/include/kyosu/functions/cospi.hpp
index 1fe7fb3d..53452bd1 100644
--- a/include/kyosu/functions/cospi.hpp
+++ b/include/kyosu/functions/cospi.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 
diff --git a/include/kyosu/functions/cot.hpp b/include/kyosu/functions/cot.hpp
index cb169f0e..8ad79d0e 100644
--- a/include/kyosu/functions/cot.hpp
+++ b/include/kyosu/functions/cot.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/rec.hpp>
 #include <kyosu/functions/tan.hpp>
diff --git a/include/kyosu/functions/coth.hpp b/include/kyosu/functions/coth.hpp
index 8a5f8d15..2973e86e 100644
--- a/include/kyosu/functions/coth.hpp
+++ b/include/kyosu/functions/coth.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/tanh.hpp>
 
diff --git a/include/kyosu/functions/cotpi.hpp b/include/kyosu/functions/cotpi.hpp
index eeb2e3fa..ab4a71cf 100644
--- a/include/kyosu/functions/cotpi.hpp
+++ b/include/kyosu/functions/cotpi.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 #include <kyosu/functions/tanpi.hpp>
diff --git a/include/kyosu/functions/csc.hpp b/include/kyosu/functions/csc.hpp
index 3266fae9..bd29b0bc 100644
--- a/include/kyosu/functions/csc.hpp
+++ b/include/kyosu/functions/csc.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/sin.hpp>
 #include <kyosu/functions/rec.hpp>
diff --git a/include/kyosu/functions/csch.hpp b/include/kyosu/functions/csch.hpp
index 94b394af..950e36cf 100644
--- a/include/kyosu/functions/csch.hpp
+++ b/include/kyosu/functions/csch.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/sinh.hpp>
 #include <kyosu/functions/rec.hpp>
diff --git a/include/kyosu/functions/cscpi.hpp b/include/kyosu/functions/cscpi.hpp
index e13eb069..2764570c 100644
--- a/include/kyosu/functions/cscpi.hpp
+++ b/include/kyosu/functions/cscpi.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 #include <kyosu/functions/sinpi.hpp>
diff --git a/include/kyosu/functions/cyl_bessel_h1.hpp b/include/kyosu/functions/cyl_bessel_h1.hpp
index 76d5a3d9..4dac96f7 100644
--- a/include/kyosu/functions/cyl_bessel_h1.hpp
+++ b/include/kyosu/functions/cyl_bessel_h1.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/cyl_bessel_jy.hpp>
 
diff --git a/include/kyosu/functions/cyl_bessel_h12.hpp b/include/kyosu/functions/cyl_bessel_h12.hpp
index 476a9d6e..d0306fd7 100644
--- a/include/kyosu/functions/cyl_bessel_h12.hpp
+++ b/include/kyosu/functions/cyl_bessel_h12.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/bessel.hpp>
 
diff --git a/include/kyosu/functions/cyl_bessel_h12n.hpp b/include/kyosu/functions/cyl_bessel_h12n.hpp
index 0a22cb65..2cf49642 100644
--- a/include/kyosu/functions/cyl_bessel_h12n.hpp
+++ b/include/kyosu/functions/cyl_bessel_h12n.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/bessel.hpp>
 
diff --git a/include/kyosu/functions/cyl_bessel_h12r.hpp b/include/kyosu/functions/cyl_bessel_h12r.hpp
index 891d04d8..47e66c4b 100644
--- a/include/kyosu/functions/cyl_bessel_h12r.hpp
+++ b/include/kyosu/functions/cyl_bessel_h12r.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/bessel.hpp>
 
diff --git a/include/kyosu/functions/cyl_bessel_h1_0.hpp b/include/kyosu/functions/cyl_bessel_h1_0.hpp
index 2d411be7..c99c6a16 100644
--- a/include/kyosu/functions/cyl_bessel_h1_0.hpp
+++ b/include/kyosu/functions/cyl_bessel_h1_0.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/cyl_bessel_h1_1.hpp b/include/kyosu/functions/cyl_bessel_h1_1.hpp
index 0cbb7eb6..904ca18d 100644
--- a/include/kyosu/functions/cyl_bessel_h1_1.hpp
+++ b/include/kyosu/functions/cyl_bessel_h1_1.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/cyl_bessel_h1n.hpp b/include/kyosu/functions/cyl_bessel_h1n.hpp
index 233eb9dd..bcbac8b7 100644
--- a/include/kyosu/functions/cyl_bessel_h1n.hpp
+++ b/include/kyosu/functions/cyl_bessel_h1n.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 
diff --git a/include/kyosu/functions/cyl_bessel_h2.hpp b/include/kyosu/functions/cyl_bessel_h2.hpp
index aef79496..291031b8 100644
--- a/include/kyosu/functions/cyl_bessel_h2.hpp
+++ b/include/kyosu/functions/cyl_bessel_h2.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/cyl_bessel_h2_0.hpp b/include/kyosu/functions/cyl_bessel_h2_0.hpp
index 6d7bf7c2..2908f3e0 100644
--- a/include/kyosu/functions/cyl_bessel_h2_0.hpp
+++ b/include/kyosu/functions/cyl_bessel_h2_0.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/cyl_bessel_h2_1.hpp b/include/kyosu/functions/cyl_bessel_h2_1.hpp
index f96b77cb..1da94558 100644
--- a/include/kyosu/functions/cyl_bessel_h2_1.hpp
+++ b/include/kyosu/functions/cyl_bessel_h2_1.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/cyl_bessel_h2n.hpp b/include/kyosu/functions/cyl_bessel_h2n.hpp
index 7e70cedd..fead8f12 100644
--- a/include/kyosu/functions/cyl_bessel_h2n.hpp
+++ b/include/kyosu/functions/cyl_bessel_h2n.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 
diff --git a/include/kyosu/functions/cyl_bessel_i.hpp b/include/kyosu/functions/cyl_bessel_i.hpp
index 760e4b40..f047c3b9 100644
--- a/include/kyosu/functions/cyl_bessel_i.hpp
+++ b/include/kyosu/functions/cyl_bessel_i.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/cyl_bessel_i0.hpp b/include/kyosu/functions/cyl_bessel_i0.hpp
index 869e3e3f..c17161b5 100644
--- a/include/kyosu/functions/cyl_bessel_i0.hpp
+++ b/include/kyosu/functions/cyl_bessel_i0.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/cyl_bessel_i1.hpp b/include/kyosu/functions/cyl_bessel_i1.hpp
index 606e0dbe..8dc7ae64 100644
--- a/include/kyosu/functions/cyl_bessel_i1.hpp
+++ b/include/kyosu/functions/cyl_bessel_i1.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/cyl_bessel_ik.hpp b/include/kyosu/functions/cyl_bessel_ik.hpp
index 48727451..a2b3b758 100644
--- a/include/kyosu/functions/cyl_bessel_ik.hpp
+++ b/include/kyosu/functions/cyl_bessel_ik.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/bessel.hpp>
 
diff --git a/include/kyosu/functions/cyl_bessel_ikn.hpp b/include/kyosu/functions/cyl_bessel_ikn.hpp
index 52a304df..3e4d05ea 100644
--- a/include/kyosu/functions/cyl_bessel_ikn.hpp
+++ b/include/kyosu/functions/cyl_bessel_ikn.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/bessel.hpp>
 
diff --git a/include/kyosu/functions/cyl_bessel_in.hpp b/include/kyosu/functions/cyl_bessel_in.hpp
index ca7a062d..2a13132e 100644
--- a/include/kyosu/functions/cyl_bessel_in.hpp
+++ b/include/kyosu/functions/cyl_bessel_in.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/bessel.hpp>
 
diff --git a/include/kyosu/functions/cyl_bessel_j.hpp b/include/kyosu/functions/cyl_bessel_j.hpp
index ac06d449..70b2d5c1 100644
--- a/include/kyosu/functions/cyl_bessel_j.hpp
+++ b/include/kyosu/functions/cyl_bessel_j.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/cyl_bessel_j0.hpp b/include/kyosu/functions/cyl_bessel_j0.hpp
index 5193f279..75c1d7b5 100644
--- a/include/kyosu/functions/cyl_bessel_j0.hpp
+++ b/include/kyosu/functions/cyl_bessel_j0.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/bessel.hpp>
 
diff --git a/include/kyosu/functions/cyl_bessel_j1.hpp b/include/kyosu/functions/cyl_bessel_j1.hpp
index 4abf2673..6427feab 100644
--- a/include/kyosu/functions/cyl_bessel_j1.hpp
+++ b/include/kyosu/functions/cyl_bessel_j1.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/cyl_bessel_jn.hpp b/include/kyosu/functions/cyl_bessel_jn.hpp
index fbdcc36c..652dc55c 100644
--- a/include/kyosu/functions/cyl_bessel_jn.hpp
+++ b/include/kyosu/functions/cyl_bessel_jn.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/bessel.hpp>
 
diff --git a/include/kyosu/functions/cyl_bessel_jy.hpp b/include/kyosu/functions/cyl_bessel_jy.hpp
index 0b88b1f6..ac1db976 100644
--- a/include/kyosu/functions/cyl_bessel_jy.hpp
+++ b/include/kyosu/functions/cyl_bessel_jy.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/bessel.hpp>
 
diff --git a/include/kyosu/functions/cyl_bessel_jyn.hpp b/include/kyosu/functions/cyl_bessel_jyn.hpp
index ee0e6fd0..b05d0cfa 100644
--- a/include/kyosu/functions/cyl_bessel_jyn.hpp
+++ b/include/kyosu/functions/cyl_bessel_jyn.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/bessel.hpp>
 
diff --git a/include/kyosu/functions/cyl_bessel_k.hpp b/include/kyosu/functions/cyl_bessel_k.hpp
index 2416f41c..1094eabf 100644
--- a/include/kyosu/functions/cyl_bessel_k.hpp
+++ b/include/kyosu/functions/cyl_bessel_k.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 
diff --git a/include/kyosu/functions/cyl_bessel_k0.hpp b/include/kyosu/functions/cyl_bessel_k0.hpp
index 10d1ba57..30c21b44 100644
--- a/include/kyosu/functions/cyl_bessel_k0.hpp
+++ b/include/kyosu/functions/cyl_bessel_k0.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/cyl_bessel_k1.hpp b/include/kyosu/functions/cyl_bessel_k1.hpp
index 73d407c6..a7b1220e 100644
--- a/include/kyosu/functions/cyl_bessel_k1.hpp
+++ b/include/kyosu/functions/cyl_bessel_k1.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/cyl_bessel_kn.hpp b/include/kyosu/functions/cyl_bessel_kn.hpp
index b694d872..bc0b2338 100644
--- a/include/kyosu/functions/cyl_bessel_kn.hpp
+++ b/include/kyosu/functions/cyl_bessel_kn.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/bessel.hpp>
 
diff --git a/include/kyosu/functions/cyl_bessel_y.hpp b/include/kyosu/functions/cyl_bessel_y.hpp
index 41d40cb0..2a91912a 100644
--- a/include/kyosu/functions/cyl_bessel_y.hpp
+++ b/include/kyosu/functions/cyl_bessel_y.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/cyl_bessel_y0.hpp b/include/kyosu/functions/cyl_bessel_y0.hpp
index c2a29d20..b625a082 100644
--- a/include/kyosu/functions/cyl_bessel_y0.hpp
+++ b/include/kyosu/functions/cyl_bessel_y0.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/cyl_bessel_y1.hpp b/include/kyosu/functions/cyl_bessel_y1.hpp
index 6ad52623..9a433a72 100644
--- a/include/kyosu/functions/cyl_bessel_y1.hpp
+++ b/include/kyosu/functions/cyl_bessel_y1.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/cyl_bessel_yn.hpp b/include/kyosu/functions/cyl_bessel_yn.hpp
index 321769ca..5cf53f9b 100644
--- a/include/kyosu/functions/cyl_bessel_yn.hpp
+++ b/include/kyosu/functions/cyl_bessel_yn.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/bessel.hpp>
 
diff --git a/include/kyosu/functions/dec.hpp b/include/kyosu/functions/dec.hpp
index 6864c85b..7de6648c 100644
--- a/include/kyosu/functions/dec.hpp
+++ b/include/kyosu/functions/dec.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/deta.hpp b/include/kyosu/functions/deta.hpp
index 992a46f6..0227b128 100644
--- a/include/kyosu/functions/deta.hpp
+++ b/include/kyosu/functions/deta.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 #include <kyosu/functions/oneminus.hpp>
diff --git a/include/kyosu/functions/digamma.hpp b/include/kyosu/functions/digamma.hpp
index ce1a2abd..f68a16de 100644
--- a/include/kyosu/functions/digamma.hpp
+++ b/include/kyosu/functions/digamma.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 #include <kyosu/functions/oneminus.hpp>
diff --git a/include/kyosu/functions/dot.hpp b/include/kyosu/functions/dot.hpp
index 519adb46..59cb51c1 100644
--- a/include/kyosu/functions/dot.hpp
+++ b/include/kyosu/functions/dot.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 
diff --git a/include/kyosu/functions/erf.hpp b/include/kyosu/functions/erf.hpp
index c0b78c8d..e6135ce2 100644
--- a/include/kyosu/functions/erf.hpp
+++ b/include/kyosu/functions/erf.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 #include <kyosu/functions/faddeeva.hpp>
diff --git a/include/kyosu/functions/erfcx.hpp b/include/kyosu/functions/erfcx.hpp
index d384c557..3bc5a4e6 100644
--- a/include/kyosu/functions/erfcx.hpp
+++ b/include/kyosu/functions/erfcx.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 #include <kyosu/functions/faddeeva.hpp>
diff --git a/include/kyosu/functions/erfi.hpp b/include/kyosu/functions/erfi.hpp
index 191d8c42..3724a33e 100644
--- a/include/kyosu/functions/erfi.hpp
+++ b/include/kyosu/functions/erfi.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 #include <kyosu/functions/erf.hpp>
diff --git a/include/kyosu/functions/eta.hpp b/include/kyosu/functions/eta.hpp
index dec8730e..db133cf2 100644
--- a/include/kyosu/functions/eta.hpp
+++ b/include/kyosu/functions/eta.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 #include <kyosu/functions/deta.hpp>
diff --git a/include/kyosu/functions/exp.hpp b/include/kyosu/functions/exp.hpp
index b318e98e..c534cddf 100644
--- a/include/kyosu/functions/exp.hpp
+++ b/include/kyosu/functions/exp.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/details/cayleyify.hpp>
 #include <kyosu/functions/is_nan.hpp>
diff --git a/include/kyosu/functions/exp10.hpp b/include/kyosu/functions/exp10.hpp
index a47364aa..ef40c3d7 100644
--- a/include/kyosu/functions/exp10.hpp
+++ b/include/kyosu/functions/exp10.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/constants/wrapped.hpp>
 
diff --git a/include/kyosu/functions/exp2.hpp b/include/kyosu/functions/exp2.hpp
index c92c4bb2..f6d02ae0 100644
--- a/include/kyosu/functions/exp2.hpp
+++ b/include/kyosu/functions/exp2.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/constants/wrapped.hpp>
 
diff --git a/include/kyosu/functions/exp_i.hpp b/include/kyosu/functions/exp_i.hpp
index aca2c45d..269abb6c 100644
--- a/include/kyosu/functions/exp_i.hpp
+++ b/include/kyosu/functions/exp_i.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/exp.hpp>
 #include <kyosu/functions/muli.hpp>
diff --git a/include/kyosu/functions/exp_ipi.hpp b/include/kyosu/functions/exp_ipi.hpp
index 157b9f53..5b49f5b1 100644
--- a/include/kyosu/functions/exp_ipi.hpp
+++ b/include/kyosu/functions/exp_ipi.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/muli.hpp>
 #include <kyosu/constants/wrapped.hpp>
diff --git a/include/kyosu/functions/expm1.hpp b/include/kyosu/functions/expm1.hpp
index 25d29800..dad1f375 100644
--- a/include/kyosu/functions/expm1.hpp
+++ b/include/kyosu/functions/expm1.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/expmx2.hpp b/include/kyosu/functions/expmx2.hpp
index 882ce5b5..70d9cb94 100644
--- a/include/kyosu/functions/expmx2.hpp
+++ b/include/kyosu/functions/expmx2.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/exp.hpp>
 #include <kyosu/functions/sqr.hpp>
diff --git a/include/kyosu/functions/expx2.hpp b/include/kyosu/functions/expx2.hpp
index 6dc41b02..7d8689e3 100644
--- a/include/kyosu/functions/expx2.hpp
+++ b/include/kyosu/functions/expx2.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/exp.hpp>
 #include <kyosu/functions/sqr.hpp>
diff --git a/include/kyosu/functions/faddeeva.hpp b/include/kyosu/functions/faddeeva.hpp
index 41c24dea..1b336846 100644
--- a/include/kyosu/functions/faddeeva.hpp
+++ b/include/kyosu/functions/faddeeva.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 
diff --git a/include/kyosu/functions/fam.hpp b/include/kyosu/functions/fam.hpp
index 3598961c..555d286b 100644
--- a/include/kyosu/functions/fam.hpp
+++ b/include/kyosu/functions/fam.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 
diff --git a/include/kyosu/functions/floor.hpp b/include/kyosu/functions/floor.hpp
index a44f6654..a54bbc2f 100644
--- a/include/kyosu/functions/floor.hpp
+++ b/include/kyosu/functions/floor.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/fma.hpp b/include/kyosu/functions/fma.hpp
index 4d5d99a5..30f3cdc7 100644
--- a/include/kyosu/functions/fma.hpp
+++ b/include/kyosu/functions/fma.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 
diff --git a/include/kyosu/functions/fms.hpp b/include/kyosu/functions/fms.hpp
index 3d076fac..ba8b9660 100644
--- a/include/kyosu/functions/fms.hpp
+++ b/include/kyosu/functions/fms.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 
diff --git a/include/kyosu/functions/fnma.hpp b/include/kyosu/functions/fnma.hpp
index 51ee6926..25b786e8 100644
--- a/include/kyosu/functions/fnma.hpp
+++ b/include/kyosu/functions/fnma.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 
diff --git a/include/kyosu/functions/fnms.hpp b/include/kyosu/functions/fnms.hpp
index ad257566..7d39af6e 100644
--- a/include/kyosu/functions/fnms.hpp
+++ b/include/kyosu/functions/fnms.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 
diff --git a/include/kyosu/functions/frac.hpp b/include/kyosu/functions/frac.hpp
index 8e1021e1..9cd16499 100644
--- a/include/kyosu/functions/frac.hpp
+++ b/include/kyosu/functions/frac.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/from_cylindricospherical.hpp b/include/kyosu/functions/from_cylindricospherical.hpp
index e953c387..895d07c9 100644
--- a/include/kyosu/functions/from_cylindricospherical.hpp
+++ b/include/kyosu/functions/from_cylindricospherical.hpp
@@ -45,7 +45,7 @@ namespace kyosu
   //! @groupheader{Header file}
   //!
   //!   @code
-  //!   #include eve/module/quaternion.hpp>`
+  //!   #include kyosu/quaternion.hpp>`
   //!   @endcode
   //!
   //!   @groupheader{Callable Signatures}
diff --git a/include/kyosu/functions/from_cylindrospherical.hpp b/include/kyosu/functions/from_cylindrospherical.hpp
index e97fc19c..7bd6efd7 100644
--- a/include/kyosu/functions/from_cylindrospherical.hpp
+++ b/include/kyosu/functions/from_cylindrospherical.hpp
@@ -46,7 +46,7 @@ namespace kyosu
   //! @groupheader{Header file}
   //!
   //!   @code
-  //!   #include eve/module/quaternion.hpp>`
+  //!   #include kyosu/quaternion.hpp>`
   //!   @endcode
   //!
   //!   @groupheader{Callable Signatures}
diff --git a/include/kyosu/functions/from_euler.hpp b/include/kyosu/functions/from_euler.hpp
index 1f5d8e23..8886d50e 100644
--- a/include/kyosu/functions/from_euler.hpp
+++ b/include/kyosu/functions/from_euler.hpp
@@ -73,7 +73,7 @@ namespace kyosu
   //! @groupheader{Header file}
   //!
   //!   @code
-  //!   #include eve/module/quaternion.hpp>`
+  //!   #include kyosu/quaternion.hpp>`
   //!   @endcode
   //!
   //!   @groupheader{Callable Signatures}
diff --git a/include/kyosu/functions/from_multipolar.hpp b/include/kyosu/functions/from_multipolar.hpp
index 3d1f78f4..2fa6c197 100644
--- a/include/kyosu/functions/from_multipolar.hpp
+++ b/include/kyosu/functions/from_multipolar.hpp
@@ -43,7 +43,7 @@ namespace kyosu
   //! @groupheader{Header file}
   //!
   //!   @code
-  //!   #include eve/module/quaternion.hpp>`
+  //!   #include kyosu/quaternion.hpp>`
   //!   @endcode
   //!
   //!   @groupheader{Callable Signatures}
diff --git a/include/kyosu/functions/from_polar.hpp b/include/kyosu/functions/from_polar.hpp
index 32d8b1d0..a1d50543 100644
--- a/include/kyosu/functions/from_polar.hpp
+++ b/include/kyosu/functions/from_polar.hpp
@@ -41,7 +41,7 @@ namespace kyosu
   //!   @groupheader{Callable Signatures}
   //!
   //!   @code
-  //!   #include eve/module/quaternion.hpp>`
+  //!   #include kyosu/quaternion.hpp>`
   //!   @endcode
   //!
   //!   @groupheader{Callable Signatures}
diff --git a/include/kyosu/functions/from_rotation_matrix.hpp b/include/kyosu/functions/from_rotation_matrix.hpp
index 6a9dcd9d..756e3ccf 100644
--- a/include/kyosu/functions/from_rotation_matrix.hpp
+++ b/include/kyosu/functions/from_rotation_matrix.hpp
@@ -58,7 +58,7 @@ namespace kyosu
   //! @groupheader{Header file}
   //!
   //!   @code
-  //!   #include eve/module/quaternion.hpp>`
+  //!   #include kyosu/quaternion.hpp>`
   //!   @endcode
   //!
   //!   @groupheader{Callable Signatures}
diff --git a/include/kyosu/functions/from_spherical.hpp b/include/kyosu/functions/from_spherical.hpp
index f7b9f208..289871ba 100644
--- a/include/kyosu/functions/from_spherical.hpp
+++ b/include/kyosu/functions/from_spherical.hpp
@@ -47,7 +47,7 @@ namespace kyosu
   //! @groupheader{Header file}
   //!
   //!   @code
-  //!   #include eve/module/quaternion.hpp>`
+  //!   #include kyosu/quaternion.hpp>`
   //!   @endcode
   //!
   //!   @groupheader{Callable Signatures}
diff --git a/include/kyosu/functions/fsm.hpp b/include/kyosu/functions/fsm.hpp
index 8b42a009..c1a15fb8 100644
--- a/include/kyosu/functions/fsm.hpp
+++ b/include/kyosu/functions/fsm.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 
diff --git a/include/kyosu/functions/horner.hpp b/include/kyosu/functions/horner.hpp
index 2ac8a064..9f3ce242 100644
--- a/include/kyosu/functions/horner.hpp
+++ b/include/kyosu/functions/horner.hpp
@@ -64,7 +64,7 @@ namespace kyosu
 //!   @groupheader{Header file}
 //!
 //!   @code
-//!   #include <eve/module/polynomial.hpp>
+//!   #include <kyosu/functions.hpp>
 //!   @endcode
 //!
 //!   @groupheader{Callable Signatures}
diff --git a/include/kyosu/functions/hypot.hpp b/include/kyosu/functions/hypot.hpp
index ad1e7db7..0dc5537d 100644
--- a/include/kyosu/functions/hypot.hpp
+++ b/include/kyosu/functions/hypot.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 
diff --git a/include/kyosu/functions/inc.hpp b/include/kyosu/functions/inc.hpp
index 5a5e978c..12bc6a35 100644
--- a/include/kyosu/functions/inc.hpp
+++ b/include/kyosu/functions/inc.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/is_denormal.hpp b/include/kyosu/functions/is_denormal.hpp
index 904fb24a..72d4dadf 100644
--- a/include/kyosu/functions/is_denormal.hpp
+++ b/include/kyosu/functions/is_denormal.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/is_equal.hpp b/include/kyosu/functions/is_equal.hpp
index 35775bb6..51a221c5 100644
--- a/include/kyosu/functions/is_equal.hpp
+++ b/include/kyosu/functions/is_equal.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 #include <kyosu/functions/is_nan.hpp>
diff --git a/include/kyosu/functions/is_eqz.hpp b/include/kyosu/functions/is_eqz.hpp
index b6c87daf..7b007062 100644
--- a/include/kyosu/functions/is_eqz.hpp
+++ b/include/kyosu/functions/is_eqz.hpp
@@ -7,7 +7,6 @@
 //======================================================================================================================
 #pragma once
 
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/is_finite.hpp b/include/kyosu/functions/is_finite.hpp
index 5a726e04..33d909a8 100644
--- a/include/kyosu/functions/is_finite.hpp
+++ b/include/kyosu/functions/is_finite.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/is_imag.hpp b/include/kyosu/functions/is_imag.hpp
index 79dce06d..54473e84 100644
--- a/include/kyosu/functions/is_imag.hpp
+++ b/include/kyosu/functions/is_imag.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/is_nan.hpp b/include/kyosu/functions/is_nan.hpp
index 86d1a7df..c8f00145 100644
--- a/include/kyosu/functions/is_nan.hpp
+++ b/include/kyosu/functions/is_nan.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/is_nez.hpp b/include/kyosu/functions/is_nez.hpp
index f7a95f14..77354a2a 100644
--- a/include/kyosu/functions/is_nez.hpp
+++ b/include/kyosu/functions/is_nez.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/is_not_denormal.hpp b/include/kyosu/functions/is_not_denormal.hpp
index f835c1b8..615bba31 100644
--- a/include/kyosu/functions/is_not_denormal.hpp
+++ b/include/kyosu/functions/is_not_denormal.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/is_not_equal.hpp b/include/kyosu/functions/is_not_equal.hpp
index accc82bb..f072544c 100644
--- a/include/kyosu/functions/is_not_equal.hpp
+++ b/include/kyosu/functions/is_not_equal.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 #include <kyosu/functions/is_not_nan.hpp>
diff --git a/include/kyosu/functions/is_not_finite.hpp b/include/kyosu/functions/is_not_finite.hpp
index 365a266e..e6e8fc19 100644
--- a/include/kyosu/functions/is_not_finite.hpp
+++ b/include/kyosu/functions/is_not_finite.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/is_not_infinite.hpp b/include/kyosu/functions/is_not_infinite.hpp
index 47c8c986..a3e00e6f 100644
--- a/include/kyosu/functions/is_not_infinite.hpp
+++ b/include/kyosu/functions/is_not_infinite.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/is_not_nan.hpp b/include/kyosu/functions/is_not_nan.hpp
index 4dd6dc2e..fc7c2c69 100644
--- a/include/kyosu/functions/is_not_nan.hpp
+++ b/include/kyosu/functions/is_not_nan.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/is_not_real.hpp b/include/kyosu/functions/is_not_real.hpp
index 29445dc8..004044d6 100644
--- a/include/kyosu/functions/is_not_real.hpp
+++ b/include/kyosu/functions/is_not_real.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/is_pure.hpp b/include/kyosu/functions/is_pure.hpp
index 28c31f66..08d89629 100644
--- a/include/kyosu/functions/is_pure.hpp
+++ b/include/kyosu/functions/is_pure.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/is_real.hpp b/include/kyosu/functions/is_real.hpp
index f70bdb3c..dff7467b 100644
--- a/include/kyosu/functions/is_real.hpp
+++ b/include/kyosu/functions/is_real.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/is_unitary.hpp b/include/kyosu/functions/is_unitary.hpp
index 2d5e9055..38dca9ee 100644
--- a/include/kyosu/functions/is_unitary.hpp
+++ b/include/kyosu/functions/is_unitary.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/lambda.hpp b/include/kyosu/functions/lambda.hpp
index 4996a084..01ab1076 100644
--- a/include/kyosu/functions/lambda.hpp
+++ b/include/kyosu/functions/lambda.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 #include <kyosu/functions/exp2.hpp>
diff --git a/include/kyosu/functions/lbeta.hpp b/include/kyosu/functions/lbeta.hpp
index 47ed3cbc..71d68955 100644
--- a/include/kyosu/functions/lbeta.hpp
+++ b/include/kyosu/functions/lbeta.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 #include <kyosu/functions/log.hpp>
diff --git a/include/kyosu/functions/ldiv.hpp b/include/kyosu/functions/ldiv.hpp
index dcd6e076..dfa06957 100644
--- a/include/kyosu/functions/ldiv.hpp
+++ b/include/kyosu/functions/ldiv.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/rec.hpp>
 
diff --git a/include/kyosu/functions/lerp.hpp b/include/kyosu/functions/lerp.hpp
index 7a4e288a..fc63b7c1 100644
--- a/include/kyosu/functions/lerp.hpp
+++ b/include/kyosu/functions/lerp.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 
diff --git a/include/kyosu/functions/log.hpp b/include/kyosu/functions/log.hpp
index db0b8b69..2b2403f3 100644
--- a/include/kyosu/functions/log.hpp
+++ b/include/kyosu/functions/log.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 
diff --git a/include/kyosu/functions/log10.hpp b/include/kyosu/functions/log10.hpp
index b528fee9..e6d0b629 100644
--- a/include/kyosu/functions/log10.hpp
+++ b/include/kyosu/functions/log10.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/log1p.hpp b/include/kyosu/functions/log1p.hpp
index ac94e804..d4a7516f 100644
--- a/include/kyosu/functions/log1p.hpp
+++ b/include/kyosu/functions/log1p.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/inc.hpp>
 #include <kyosu/functions/to_complex.hpp>
diff --git a/include/kyosu/functions/log2.hpp b/include/kyosu/functions/log2.hpp
index 7fb37752..b99fab54 100644
--- a/include/kyosu/functions/log2.hpp
+++ b/include/kyosu/functions/log2.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/if_else.hpp>
 #include <kyosu/functions/is_not_finite.hpp>
diff --git a/include/kyosu/functions/log_abs.hpp b/include/kyosu/functions/log_abs.hpp
index 0f385397..854f1546 100644
--- a/include/kyosu/functions/log_abs.hpp
+++ b/include/kyosu/functions/log_abs.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/sqr_abs.hpp>
 #include <kyosu/constants/wrapped.hpp>
diff --git a/include/kyosu/functions/log_abs_gamma.hpp b/include/kyosu/functions/log_abs_gamma.hpp
index c3f9e7b6..e116d32f 100644
--- a/include/kyosu/functions/log_abs_gamma.hpp
+++ b/include/kyosu/functions/log_abs_gamma.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 #include <kyosu/functions/log_abs.hpp>
diff --git a/include/kyosu/functions/log_gamma.hpp b/include/kyosu/functions/log_gamma.hpp
index 63bb7d3d..e021fdce 100644
--- a/include/kyosu/functions/log_gamma.hpp
+++ b/include/kyosu/functions/log_gamma.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/lpnorm.hpp b/include/kyosu/functions/lpnorm.hpp
index db370c9f..23308a2d 100644
--- a/include/kyosu/functions/lpnorm.hpp
+++ b/include/kyosu/functions/lpnorm.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 
diff --git a/include/kyosu/functions/lrising_factorial.hpp b/include/kyosu/functions/lrising_factorial.hpp
index 01b73542..97d1466d 100644
--- a/include/kyosu/functions/lrising_factorial.hpp
+++ b/include/kyosu/functions/lrising_factorial.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 #include <kyosu/functions/rising_factorial.hpp>
diff --git a/include/kyosu/functions/maxabs.hpp b/include/kyosu/functions/maxabs.hpp
index 5d9b9ee8..ec10173d 100644
--- a/include/kyosu/functions/maxabs.hpp
+++ b/include/kyosu/functions/maxabs.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 #include <kyosu/functions/abs.hpp>
diff --git a/include/kyosu/functions/maxmag.hpp b/include/kyosu/functions/maxmag.hpp
index 4654ffbb..8de56420 100644
--- a/include/kyosu/functions/maxmag.hpp
+++ b/include/kyosu/functions/maxmag.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 #include <kyosu/functions/sqr_abs.hpp>
diff --git a/include/kyosu/functions/minabs.hpp b/include/kyosu/functions/minabs.hpp
index 554e1ec7..e8e7c5bc 100644
--- a/include/kyosu/functions/minabs.hpp
+++ b/include/kyosu/functions/minabs.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 #include <kyosu/functions/abs.hpp>
diff --git a/include/kyosu/functions/minmag.hpp b/include/kyosu/functions/minmag.hpp
index c08392e3..21974a7b 100644
--- a/include/kyosu/functions/minmag.hpp
+++ b/include/kyosu/functions/minmag.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 #include <kyosu/functions/sqr_abs.hpp>
diff --git a/include/kyosu/functions/minus.hpp b/include/kyosu/functions/minus.hpp
index 1515fd57..0e8e3031 100644
--- a/include/kyosu/functions/minus.hpp
+++ b/include/kyosu/functions/minus.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/muli.hpp b/include/kyosu/functions/muli.hpp
index 4d55a762..28d53ed5 100644
--- a/include/kyosu/functions/muli.hpp
+++ b/include/kyosu/functions/muli.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/constants/i.hpp>
 
diff --git a/include/kyosu/functions/mulmi.hpp b/include/kyosu/functions/mulmi.hpp
index 1bc02b3a..1decf125 100644
--- a/include/kyosu/functions/mulmi.hpp
+++ b/include/kyosu/functions/mulmi.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/constants/mi.hpp>
 
diff --git a/include/kyosu/functions/nearest.hpp b/include/kyosu/functions/nearest.hpp
index c8e67234..fa32a5ba 100644
--- a/include/kyosu/functions/nearest.hpp
+++ b/include/kyosu/functions/nearest.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/negmaxabs.hpp b/include/kyosu/functions/negmaxabs.hpp
index 24e3f2fc..afca3416 100644
--- a/include/kyosu/functions/negmaxabs.hpp
+++ b/include/kyosu/functions/negmaxabs.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 #include <kyosu/functions/maxabs.hpp>
diff --git a/include/kyosu/functions/negminabs.hpp b/include/kyosu/functions/negminabs.hpp
index c7a50900..40306eb3 100644
--- a/include/kyosu/functions/negminabs.hpp
+++ b/include/kyosu/functions/negminabs.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/minabs.hpp>
 
diff --git a/include/kyosu/functions/oneminus.hpp b/include/kyosu/functions/oneminus.hpp
index cae4a33d..a1c9657d 100644
--- a/include/kyosu/functions/oneminus.hpp
+++ b/include/kyosu/functions/oneminus.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/inc.hpp>
 #include <kyosu/functions/minus.hpp>
diff --git a/include/kyosu/functions/pow.hpp b/include/kyosu/functions/pow.hpp
index 2cfb4245..60884d9f 100644
--- a/include/kyosu/functions/pow.hpp
+++ b/include/kyosu/functions/pow.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 #include <kyosu/functions/exp_i.hpp>
diff --git a/include/kyosu/functions/pow1p.hpp b/include/kyosu/functions/pow1p.hpp
index f0b1d272..c5f991f1 100644
--- a/include/kyosu/functions/pow1p.hpp
+++ b/include/kyosu/functions/pow1p.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 
diff --git a/include/kyosu/functions/pow_abs.hpp b/include/kyosu/functions/pow_abs.hpp
index c936085f..3c3d99db 100644
--- a/include/kyosu/functions/pow_abs.hpp
+++ b/include/kyosu/functions/pow_abs.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/pow.hpp>
 
diff --git a/include/kyosu/functions/powm1.hpp b/include/kyosu/functions/powm1.hpp
index 537cc410..fdb90f09 100644
--- a/include/kyosu/functions/powm1.hpp
+++ b/include/kyosu/functions/powm1.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 
diff --git a/include/kyosu/functions/proj.hpp b/include/kyosu/functions/proj.hpp
index 1991e06b..8cc568b9 100644
--- a/include/kyosu/functions/proj.hpp
+++ b/include/kyosu/functions/proj.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/radinpi.hpp b/include/kyosu/functions/radinpi.hpp
index 8e90fa49..a389faa8 100644
--- a/include/kyosu/functions/radinpi.hpp
+++ b/include/kyosu/functions/radinpi.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/constants/wrapped.hpp>
 
diff --git a/include/kyosu/functions/rec.hpp b/include/kyosu/functions/rec.hpp
index fe44c21c..409da594 100644
--- a/include/kyosu/functions/rec.hpp
+++ b/include/kyosu/functions/rec.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/if_else.hpp>
 #include <kyosu/functions/is_infinite.hpp>
diff --git a/include/kyosu/functions/reverse_horner.hpp b/include/kyosu/functions/reverse_horner.hpp
index b2317a77..0c8e86d7 100644
--- a/include/kyosu/functions/reverse_horner.hpp
+++ b/include/kyosu/functions/reverse_horner.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 #include <kyosu/functions/convert.hpp>
@@ -67,7 +66,7 @@ namespace kyosu
 //!   @groupheader{Header file}
 //!
 //!   @code
-//!   #include <eve/module/polynomial.hpp>
+//!   #include <kyosu/functions.hpp>
 //!   @endcode
 //!
 //!   @groupheader{Callable Signatures}
diff --git a/include/kyosu/functions/rising_factorial.hpp b/include/kyosu/functions/rising_factorial.hpp
index 65357227..d50082a0 100644
--- a/include/kyosu/functions/rising_factorial.hpp
+++ b/include/kyosu/functions/rising_factorial.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 #include <kyosu/functions/tgamma.hpp>
diff --git a/include/kyosu/functions/rot_angle.hpp b/include/kyosu/functions/rot_angle.hpp
index 5d9f03ea..ecb6284b 100644
--- a/include/kyosu/functions/rot_angle.hpp
+++ b/include/kyosu/functions/rot_angle.hpp
@@ -38,7 +38,7 @@ namespace kyosu
   //! @groupheader{Header file}
   //!
   //!   @code
-  //!   #include eve/module/quaternion.hpp>`
+  //!   #include kyosu/quaternion.hpp>`
   //!   @endcode
   //!
   //!   @groupheader{Callable Signatures}
diff --git a/include/kyosu/functions/rot_axis.hpp b/include/kyosu/functions/rot_axis.hpp
index 6db39493..4893e881 100644
--- a/include/kyosu/functions/rot_axis.hpp
+++ b/include/kyosu/functions/rot_axis.hpp
@@ -42,7 +42,7 @@ namespace kyosu
   //! @groupheader{Header file}
   //!
   //!   @code
-  //!   #include eve/module/quaternion.hpp>`
+  //!   #include kyosu/quaternion.hpp>`
   //!   @endcode
   //!
   //!   @groupheader{Callable Signatures}
diff --git a/include/kyosu/functions/rotate_vec.hpp b/include/kyosu/functions/rotate_vec.hpp
index c926ba1d..641b8d58 100644
--- a/include/kyosu/functions/rotate_vec.hpp
+++ b/include/kyosu/functions/rotate_vec.hpp
@@ -51,7 +51,7 @@ namespace kyosu
   //! @groupheader{Header file}
   //!
   //!   @code
-  //!   #include eve/module/quaternion.hpp>`
+  //!   #include kyosu/quaternion.hpp>`
   //!   @endcode
   //!
   //!   @groupheader{Callable Signatures}
diff --git a/include/kyosu/functions/sec.hpp b/include/kyosu/functions/sec.hpp
index 20807977..dd7e582a 100644
--- a/include/kyosu/functions/sec.hpp
+++ b/include/kyosu/functions/sec.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/rec.hpp>
 #include <kyosu/functions/cos.hpp>
diff --git a/include/kyosu/functions/sech.hpp b/include/kyosu/functions/sech.hpp
index de2c3ab1..0424ca5a 100644
--- a/include/kyosu/functions/sech.hpp
+++ b/include/kyosu/functions/sech.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/rec.hpp>
 #include <kyosu/functions/cosh.hpp>
diff --git a/include/kyosu/functions/secpi.hpp b/include/kyosu/functions/secpi.hpp
index a011c6c6..b27df0e2 100644
--- a/include/kyosu/functions/secpi.hpp
+++ b/include/kyosu/functions/secpi.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/rec.hpp>
 #include <kyosu/functions/cospi.hpp>
diff --git a/include/kyosu/functions/signnz.hpp b/include/kyosu/functions/signnz.hpp
index df880b76..21ef339b 100644
--- a/include/kyosu/functions/signnz.hpp
+++ b/include/kyosu/functions/signnz.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/is_nez.hpp>
 
diff --git a/include/kyosu/functions/sin.hpp b/include/kyosu/functions/sin.hpp
index f054f63a..9a361459 100644
--- a/include/kyosu/functions/sin.hpp
+++ b/include/kyosu/functions/sin.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/sinh.hpp>
 #include <kyosu/details/cayleyify.hpp>
diff --git a/include/kyosu/functions/sinc.hpp b/include/kyosu/functions/sinc.hpp
index 9bfb6199..ca53780e 100644
--- a/include/kyosu/functions/sinc.hpp
+++ b/include/kyosu/functions/sinc.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/details/cayleyify.hpp>
 
diff --git a/include/kyosu/functions/sincos.hpp b/include/kyosu/functions/sincos.hpp
index 904e6ff3..c2a75ba6 100644
--- a/include/kyosu/functions/sincos.hpp
+++ b/include/kyosu/functions/sincos.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/sinhcosh.hpp>
 #include <kyosu/functions/muli.hpp>
diff --git a/include/kyosu/functions/sinh.hpp b/include/kyosu/functions/sinh.hpp
index 69268c00..f770de29 100644
--- a/include/kyosu/functions/sinh.hpp
+++ b/include/kyosu/functions/sinh.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/details/cayleyify.hpp>
 #include <kyosu/functions/is_finite.hpp>
diff --git a/include/kyosu/functions/sinhc.hpp b/include/kyosu/functions/sinhc.hpp
index 186583d7..95db6f00 100644
--- a/include/kyosu/functions/sinhc.hpp
+++ b/include/kyosu/functions/sinhc.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/details/cayleyify.hpp>
 
diff --git a/include/kyosu/functions/sinhcosh.hpp b/include/kyosu/functions/sinhcosh.hpp
index d6bcb17c..c5c87a28 100644
--- a/include/kyosu/functions/sinhcosh.hpp
+++ b/include/kyosu/functions/sinhcosh.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/details/cayleyify.hpp>
 
diff --git a/include/kyosu/functions/sinpi.hpp b/include/kyosu/functions/sinpi.hpp
index 946603b9..5c6e5668 100644
--- a/include/kyosu/functions/sinpi.hpp
+++ b/include/kyosu/functions/sinpi.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 
diff --git a/include/kyosu/functions/sinpicospi.hpp b/include/kyosu/functions/sinpicospi.hpp
index 973a6806..a85ded69 100644
--- a/include/kyosu/functions/sinpicospi.hpp
+++ b/include/kyosu/functions/sinpicospi.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 
diff --git a/include/kyosu/functions/slerp.hpp b/include/kyosu/functions/slerp.hpp
index 922cef14..97096554 100644
--- a/include/kyosu/functions/slerp.hpp
+++ b/include/kyosu/functions/slerp.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 #include <kyosu/functions/pow.hpp>
diff --git a/include/kyosu/functions/sph_bessel_h1_0.hpp b/include/kyosu/functions/sph_bessel_h1_0.hpp
index 68aa9278..b18eca7b 100644
--- a/include/kyosu/functions/sph_bessel_h1_0.hpp
+++ b/include/kyosu/functions/sph_bessel_h1_0.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/sph_bessel_h1_1.hpp b/include/kyosu/functions/sph_bessel_h1_1.hpp
index 939001aa..a678d452 100644
--- a/include/kyosu/functions/sph_bessel_h1_1.hpp
+++ b/include/kyosu/functions/sph_bessel_h1_1.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/sph_bessel_h1n.hpp b/include/kyosu/functions/sph_bessel_h1n.hpp
index 89181906..a8dbb4e4 100644
--- a/include/kyosu/functions/sph_bessel_h1n.hpp
+++ b/include/kyosu/functions/sph_bessel_h1n.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 
diff --git a/include/kyosu/functions/sph_bessel_h2_0.hpp b/include/kyosu/functions/sph_bessel_h2_0.hpp
index d789386d..3afd0e6b 100644
--- a/include/kyosu/functions/sph_bessel_h2_0.hpp
+++ b/include/kyosu/functions/sph_bessel_h2_0.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/sph_bessel_h2_1.hpp b/include/kyosu/functions/sph_bessel_h2_1.hpp
index 6fbe9740..bb7cab47 100644
--- a/include/kyosu/functions/sph_bessel_h2_1.hpp
+++ b/include/kyosu/functions/sph_bessel_h2_1.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/sph_bessel_h2n.hpp b/include/kyosu/functions/sph_bessel_h2n.hpp
index ff8ea98f..3420617f 100644
--- a/include/kyosu/functions/sph_bessel_h2n.hpp
+++ b/include/kyosu/functions/sph_bessel_h2n.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 
diff --git a/include/kyosu/functions/sph_bessel_i1_0.hpp b/include/kyosu/functions/sph_bessel_i1_0.hpp
index 2e59071f..100d6ae0 100644
--- a/include/kyosu/functions/sph_bessel_i1_0.hpp
+++ b/include/kyosu/functions/sph_bessel_i1_0.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/sph_bessel_i1_1.hpp b/include/kyosu/functions/sph_bessel_i1_1.hpp
index 4dd8f468..3d28420e 100644
--- a/include/kyosu/functions/sph_bessel_i1_1.hpp
+++ b/include/kyosu/functions/sph_bessel_i1_1.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/sph_bessel_i1n.hpp b/include/kyosu/functions/sph_bessel_i1n.hpp
index 6c1a13f7..16b70343 100644
--- a/include/kyosu/functions/sph_bessel_i1n.hpp
+++ b/include/kyosu/functions/sph_bessel_i1n.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/bessel.hpp>
 
diff --git a/include/kyosu/functions/sph_bessel_i2_0.hpp b/include/kyosu/functions/sph_bessel_i2_0.hpp
index 8632f20f..4ed5fbd2 100644
--- a/include/kyosu/functions/sph_bessel_i2_0.hpp
+++ b/include/kyosu/functions/sph_bessel_i2_0.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/sph_bessel_i2n.hpp b/include/kyosu/functions/sph_bessel_i2n.hpp
index 5ec6dded..e28e0d91 100644
--- a/include/kyosu/functions/sph_bessel_i2n.hpp
+++ b/include/kyosu/functions/sph_bessel_i2n.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/bessel.hpp>
 
diff --git a/include/kyosu/functions/sph_bessel_j0.hpp b/include/kyosu/functions/sph_bessel_j0.hpp
index 8baaa807..53ec183c 100644
--- a/include/kyosu/functions/sph_bessel_j0.hpp
+++ b/include/kyosu/functions/sph_bessel_j0.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/sph_bessel_j1.hpp b/include/kyosu/functions/sph_bessel_j1.hpp
index 0692f08c..b773e96a 100644
--- a/include/kyosu/functions/sph_bessel_j1.hpp
+++ b/include/kyosu/functions/sph_bessel_j1.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/sph_bessel_jn.hpp b/include/kyosu/functions/sph_bessel_jn.hpp
index 0daa0866..4f8b647d 100644
--- a/include/kyosu/functions/sph_bessel_jn.hpp
+++ b/include/kyosu/functions/sph_bessel_jn.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/bessel.hpp>
 
diff --git a/include/kyosu/functions/sph_bessel_k0.hpp b/include/kyosu/functions/sph_bessel_k0.hpp
index 8de74005..8edb4044 100644
--- a/include/kyosu/functions/sph_bessel_k0.hpp
+++ b/include/kyosu/functions/sph_bessel_k0.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/sph_bessel_k1.hpp b/include/kyosu/functions/sph_bessel_k1.hpp
index 5ed08c54..648bfc1c 100644
--- a/include/kyosu/functions/sph_bessel_k1.hpp
+++ b/include/kyosu/functions/sph_bessel_k1.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/sph_bessel_kn.hpp b/include/kyosu/functions/sph_bessel_kn.hpp
index 8ecef68c..a93a88bd 100644
--- a/include/kyosu/functions/sph_bessel_kn.hpp
+++ b/include/kyosu/functions/sph_bessel_kn.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/bessel.hpp>
 
diff --git a/include/kyosu/functions/sph_bessel_y0.hpp b/include/kyosu/functions/sph_bessel_y0.hpp
index 41b340af..c7a2689d 100644
--- a/include/kyosu/functions/sph_bessel_y0.hpp
+++ b/include/kyosu/functions/sph_bessel_y0.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/sph_bessel_y1.hpp b/include/kyosu/functions/sph_bessel_y1.hpp
index 41166a30..7f8afa9d 100644
--- a/include/kyosu/functions/sph_bessel_y1.hpp
+++ b/include/kyosu/functions/sph_bessel_y1.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/sph_bessel_yn.hpp b/include/kyosu/functions/sph_bessel_yn.hpp
index 4adfe86f..95f678d2 100644
--- a/include/kyosu/functions/sph_bessel_yn.hpp
+++ b/include/kyosu/functions/sph_bessel_yn.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/bessel.hpp>
 
diff --git a/include/kyosu/functions/sqr.hpp b/include/kyosu/functions/sqr.hpp
index 0cac9333..bfdf5d39 100644
--- a/include/kyosu/functions/sqr.hpp
+++ b/include/kyosu/functions/sqr.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/sqrt.hpp b/include/kyosu/functions/sqrt.hpp
index 3756c8b4..767ad84d 100644
--- a/include/kyosu/functions/sqrt.hpp
+++ b/include/kyosu/functions/sqrt.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 
diff --git a/include/kyosu/functions/tan.hpp b/include/kyosu/functions/tan.hpp
index aeb21362..dae8cbd7 100644
--- a/include/kyosu/functions/tan.hpp
+++ b/include/kyosu/functions/tan.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/muli.hpp>
 #include <kyosu/functions/mulmi.hpp>
diff --git a/include/kyosu/functions/tanh.hpp b/include/kyosu/functions/tanh.hpp
index be6e946b..8eb14336 100644
--- a/include/kyosu/functions/tanh.hpp
+++ b/include/kyosu/functions/tanh.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/tanpi.hpp b/include/kyosu/functions/tanpi.hpp
index 9ebd836f..3bee2ea2 100644
--- a/include/kyosu/functions/tanpi.hpp
+++ b/include/kyosu/functions/tanpi.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/mulmi.hpp>
 
diff --git a/include/kyosu/functions/tgamma.hpp b/include/kyosu/functions/tgamma.hpp
index f28a1d41..b2509c6c 100644
--- a/include/kyosu/functions/tgamma.hpp
+++ b/include/kyosu/functions/tgamma.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 #include <kyosu/functions/dec.hpp>
diff --git a/include/kyosu/functions/to_angle_axis.hpp b/include/kyosu/functions/to_angle_axis.hpp
index aaa76887..e8e46e35 100644
--- a/include/kyosu/functions/to_angle_axis.hpp
+++ b/include/kyosu/functions/to_angle_axis.hpp
@@ -46,7 +46,7 @@ namespace kyosu
   //! @groupheader{Header file}
   //!
   //!   @code
-  //!   #include eve/module/quaternion.hpp>`
+  //!   #include kyosu/quaternion.hpp>`
   //!   @endcode
   //!
   //!   @groupheader{Callable Signatures}
diff --git a/include/kyosu/functions/to_cylindrical.hpp b/include/kyosu/functions/to_cylindrical.hpp
index 767f6733..42d153fe 100644
--- a/include/kyosu/functions/to_cylindrical.hpp
+++ b/include/kyosu/functions/to_cylindrical.hpp
@@ -54,7 +54,7 @@ namespace kyosu
   //! @groupheader{Header file}
   //!
   //!   @code
-  //!   #include eve/module/quaternion.hpp>`
+  //!   #include kyosu/quaternion.hpp>`
   //!   @endcode
   //!
   //!   @groupheader{Callable Signatures}
diff --git a/include/kyosu/functions/to_cylindrospherical.hpp b/include/kyosu/functions/to_cylindrospherical.hpp
index c6591058..a88e8622 100644
--- a/include/kyosu/functions/to_cylindrospherical.hpp
+++ b/include/kyosu/functions/to_cylindrospherical.hpp
@@ -56,7 +56,7 @@ namespace kyosu
   //! @groupheader{Header file}
   //!
   //!   @code
-  //!   #include eve/module/quaternion.hpp>`
+  //!   #include kyosu/quaternion.hpp>`
   //!   @endcode
   //!
   //!   @groupheader{Callable Signatures}
diff --git a/include/kyosu/functions/to_euler.hpp b/include/kyosu/functions/to_euler.hpp
index 6b9bdfd3..6a0eac2a 100644
--- a/include/kyosu/functions/to_euler.hpp
+++ b/include/kyosu/functions/to_euler.hpp
@@ -139,7 +139,7 @@ namespace kyosu
   //! @groupheader{Header file}
   //!
   //!   @code
-  //!   #include eve/module/quaternion.hpp>`
+  //!   #include kyosu/quaternion.hpp>`
   //!   @endcode
   //!
   //!   @groupheader{Callable Signatures}
diff --git a/include/kyosu/functions/to_multipolar.hpp b/include/kyosu/functions/to_multipolar.hpp
index 8a5e1b5f..237fbfa0 100644
--- a/include/kyosu/functions/to_multipolar.hpp
+++ b/include/kyosu/functions/to_multipolar.hpp
@@ -55,7 +55,7 @@ namespace kyosu
   //! @groupheader{Header file}
   //!
   //!   @code
-  //!   #include eve/module/quaternion.hpp>`
+  //!   #include kyosu/quaternion.hpp>`
   //!   @endcode
   //!
   //!   @groupheader{Callable Signatures}
diff --git a/include/kyosu/functions/to_polar.hpp b/include/kyosu/functions/to_polar.hpp
index 37b10ef4..25da2a15 100644
--- a/include/kyosu/functions/to_polar.hpp
+++ b/include/kyosu/functions/to_polar.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 #include <kyosu/functions/pure.hpp>
diff --git a/include/kyosu/functions/to_rotation_matrix.hpp b/include/kyosu/functions/to_rotation_matrix.hpp
index 78d3ec2b..660479f1 100644
--- a/include/kyosu/functions/to_rotation_matrix.hpp
+++ b/include/kyosu/functions/to_rotation_matrix.hpp
@@ -87,7 +87,7 @@ namespace kyosu
   //! @groupheader{Header file}
   //!
   //!   @code
-  //!   #include eve/module/quaternion.hpp>`
+  //!   #include kyosu/quaternion.hpp>`
   //!   @endcode
   //!
   //!   @groupheader{Callable Signatures}
diff --git a/include/kyosu/functions/to_semipolar.hpp b/include/kyosu/functions/to_semipolar.hpp
index b3b56a5f..6e0eac71 100644
--- a/include/kyosu/functions/to_semipolar.hpp
+++ b/include/kyosu/functions/to_semipolar.hpp
@@ -60,7 +60,7 @@ namespace kyosu
   //! @groupheader{Header file}
   //!
   //!   @code
-  //!   #include eve/module/quaternion.hpp>`
+  //!   #include kyosu/quaternion.hpp>`
   //!   @endcode
   //!
   //!   @groupheader{Callable Signatures}
diff --git a/include/kyosu/functions/to_spherical.hpp b/include/kyosu/functions/to_spherical.hpp
index 08fb8457..21b305eb 100644
--- a/include/kyosu/functions/to_spherical.hpp
+++ b/include/kyosu/functions/to_spherical.hpp
@@ -62,7 +62,7 @@ namespace kyosu
   //! @groupheader{Header file}
   //!
   //!   @code
-  //!   #include eve/module/quaternion.hpp>`
+  //!   #include kyosu/quaternion.hpp>`
   //!   @endcode
   //!
   //!   @groupheader{Callable Signatures}
diff --git a/include/kyosu/functions/trunc.hpp b/include/kyosu/functions/trunc.hpp
index 23bdddc2..e3cf397e 100644
--- a/include/kyosu/functions/trunc.hpp
+++ b/include/kyosu/functions/trunc.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 
 namespace kyosu
diff --git a/include/kyosu/functions/zeta.hpp b/include/kyosu/functions/zeta.hpp
index 06c2548e..55c48341 100644
--- a/include/kyosu/functions/zeta.hpp
+++ b/include/kyosu/functions/zeta.hpp
@@ -6,7 +6,6 @@
 */
 //======================================================================================================================
 #pragma once
-#include "eve/traits/as_logical.hpp"
 #include <kyosu/details/callable.hpp>
 #include <kyosu/functions/to_complex.hpp>
 #include <kyosu/functions/eta.hpp>
diff --git a/include/kyosu/special.hpp b/include/kyosu/special.hpp
deleted file mode 100644
index f21ed080..00000000
--- a/include/kyosu/special.hpp
+++ /dev/null
@@ -1,30 +0,0 @@
-//======================================================================================================================
-/*
-  Kyosu - Complex Without Complexes
-  Copyright : KYOSU Contributors & Maintainers
-  SPDX-License-Identifier: BSL-1.0
-*/
-//======================================================================================================================
-#pragma once
-
-#include <eve/kyosu/math.hpp>
-
-
-//======================================================================================================================
-// special functions
-//======================================================================================================================
-
-#include <kyosu/functions/deta.hpp>
-#include <kyosu/functions/digamma.hpp>
-#include <kyosu/functions/erf.hpp>
-#include <kyosu/functions/erfcx.hpp>
-#include <kyosu/functions/erfi.hpp>
-#include <kyosu/functions/eta.hpp>
-#include <kyosu/functions/faddeeva.hpp>
-#include <kyosu/functions/lambda.hpp>
-#include <kyosu/functions/lbeta.hpp>
-#include <kyosu/functions/log_abs_gamma.hpp>
-#include <kyosu/functions/log_gamma.hpp>
-#include <kyosu/functions/lrising_factorial.hpp>
-#include <kyosu/functions/rising_factorial.hpp>
-#include <kyosu/functions/zeta.hpp>
diff --git a/include/kyosu/types/concepts.hpp b/include/kyosu/types/concepts.hpp
index d9de2f1e..ba05db0e 100644
--- a/include/kyosu/types/concepts.hpp
+++ b/include/kyosu/types/concepts.hpp
@@ -7,8 +7,8 @@
 //======================================================================================================================
 #pragma once
 
-#include "eve/concept/scalar.hpp"
-#include "eve/traits/same_lanes.hpp"
+#include <eve/concept/scalar.hpp>
+#include <eve/traits/same_lanes.hpp>
 #include <eve/traits/element_type.hpp>
 #include <type_traits>
 
diff --git a/include/kyosu/types/impl/quaternion/specific.hpp b/include/kyosu/types/impl/quaternion/specific.hpp
deleted file mode 100644
index 74289854..00000000
--- a/include/kyosu/types/impl/quaternion/specific.hpp
+++ /dev/null
@@ -1,369 +0,0 @@
-//======================================================================================================================
-/*
-  Kyosu - Complex Without Complexes
-  Copyright : KYOSU Contributors & Maintainers
-  SPDX-License-Identifier: BSL-1.0
-*/
-//======================================================================================================================
-#pragma once
-
-#include <eve/module/core.hpp>
-#include <kyosu/functions/to_complex.hpp>
-namespace kyosu::_
-{
-
- template<typename Z, int II,  int JJ,  int KK, bool Extrinsic>
- KYOSU_FORCEINLINE constexpr
- auto dispatch(eve::tag_of<kyosu::to_euler> const&
-              , Z const& q0
-              , axis<II>
-              , axis<JJ>
-              , axis<KK>
-              , ext<Extrinsic>
-              ) noexcept
-  requires(II != JJ && JJ != KK)
-  {
-    using e_t =  std::remove_reference_t<decltype(real(Z()))>;
-    auto q = quaternion(q0);
-    std::array<e_t, 4> aq{get<0>(q), get<1>(q), get<2>(q), get<3>(q)};
-    EVE_ASSERT(eve::all(is_nez(q)), "some quaternion are null");
-    constexpr bool is_proper = II == KK; //Proper Euler angles else Tait-Bryan
-
-    auto prepare = [&](){
-      if constexpr(Extrinsic)
-      {
-        constexpr int K = 6-II-JJ;
-        constexpr int I = II;
-        constexpr int J = JJ;
-        int sign = (I-J)*(J-K)*(K-I)/2; // even (+1) permutation or odd (-1);
-
-        auto a = aq[0];
-        auto b = aq[I];
-        auto c = aq[J];
-        auto d = aq[K]*sign;
-        if constexpr(!is_proper)
-        {
-          a -= aq[J];
-          b += aq[K]*sign;
-          c += aq[0];
-          d -= aq[I];
-        }
-        return kumi::tuple{a, b, c, d, sign};
-      }
-      else
-      {
-        constexpr int I = KK;
-        constexpr int J = JJ;
-        constexpr int K = 6-I-J;
-        int sign = (I-J)*(J-K)*(K-I)/2; // even (+1) permutation or odd (-1);
-
-        auto a = aq[0];
-        auto b = aq[I];
-        auto c = aq[J];
-        auto d = aq[K]*sign;
-        if constexpr(!is_proper)
-        {
-          a -= aq[J];
-          b += aq[K]*sign;
-          c += aq[0];
-          d -= aq[I];
-        }
-        return kumi::tuple{a, b, c, d, sign};
-      }
-    };
-    auto [a, b, c, d, sign] = prepare();
-    auto a2pb2 = eve::sqr(a)+eve::sqr(b);
-    auto n2 = a2pb2+eve::sqr(c)+eve::sqr(d);
-    auto theta1 = eve::acos(eve::dec(2*a2pb2/n2));
-    auto eps = 1e-7;
-    auto pi  = eve::pi(eve::as<e_t>());
-    auto twopi = eve::two_pi(eve::as<e_t>());
-    auto mpi = -pi;
-    auto is_safe1 = eve::abs(theta1) >= eps;
-    auto is_safe2 = eve::abs(theta1 - pi) >= eps;
-    auto is_safe = is_safe1 && is_safe2;
-
-    auto hp = eve::atan2(b, a);
-    auto hm = eve::atan2(-d, c);
-
-    auto theta0 = hp + hm;
-    auto theta2 = hp - hm;
-
-    if constexpr(!Extrinsic)
-    {
-      theta0 = eve::if_else(!is_safe, eve::zero, theta0);
-      theta2 = eve::if_else(!is_safe1, 2*hp, theta2);
-      theta2 = eve::if_else(!is_safe2, -2*hm, theta2);
-    }
-    else
-    {
-      theta2 = eve::if_else(!is_safe, eve::zero, theta2);
-      theta0 = eve::if_else(!is_safe1, 2*hp, theta0);
-      theta0 = eve::if_else(!is_safe2, 2*hm, theta0);
-    }
-    theta0 += eve::if_else(theta0 < mpi, twopi, eve::zero);
-    theta0 -= eve::if_else(theta0 >  pi, twopi, eve::zero);
-    theta1 += eve::if_else(theta1 < mpi, twopi, eve::zero);
-    theta1 -= eve::if_else(theta1 >  pi, twopi, eve::zero);
-    theta2 += eve::if_else(theta2 < mpi, twopi, eve::zero);
-    theta2 -= eve::if_else(theta2 >  pi, twopi, eve::zero);
-
-    // for Tait-Bryan thetas
-    if(!is_proper)
-    {
-      theta2 *= sign;
-      theta1 -= pi / 2;
-    }
-    if constexpr(!Extrinsic) std::swap(theta0, theta2);
-
-    return kumi::tuple{theta0, theta1, theta2};
-  }
-
-  template<typename Z, bool normalize>
-  KYOSU_FORCEINLINE constexpr
-  auto dispatch(eve::tag_of<kyosu::to_rotation_matrix> const&
-               , Z q
-               , _::norming<normalize>) noexcept
-    {
-      if constexpr (!normalize)
-      {
-        EVE_ASSERT(eve::all(kyosu::is_unitary(q)), "some quaternions are not unitary");
-      }
-      else
-      {
-        q =  sign(q);
-      }
-      if constexpr(kyosu::concepts::complex<Z>)
-      {
-        auto q0 = real(q);
-        auto q1 = imag(q);
-        auto q02 = 2*sqr(q0)-1;
-        auto q0q1= 2*q0*q1;
-        using m_t = std::array< std::array<Z, 3>, 3>;
-        return m_t{{1, 0, 0}, {0, q02, -q0q1}, {0, q0q1, q02}};
-      }
-      else
-      {
-        auto q0 = real(q);
-        auto q1 = ipart(q);
-        auto q2 = jpart(q);
-        auto q3 = kpart(q);
-
-        // First row of the rotation matrix
-        auto r00 = 2 * (sqr(q0) + sqr(q1)) - 1;
-        auto r01 = 2 * (q1 * q2 - q0 * q3);
-        auto r02 = 2 * (q1 * q3 + q0 * q2);
-
-        // Second row of the rotation matrix
-        auto r10 = 2 * (q1 * q2 + q0 * q3);
-        auto r11 = 2 * (sqr(q0) + sqr(q2)) - 1;
-        auto r12 = 2 * (q2 * q3 - q0 * q1);
-
-        // Third row of the rotation matrix
-        auto r20 = 2 * (q1 * q3 - q0 * q2);
-        auto r21 = 2 * (q2 * q3 + q0 * q1);
-        auto r22 = 2 * (sqr(q0) + sqr(q3)) - 1;
-
-        // 3x3 rotation matrix
-        using e_t = std::decay_t<decltype(q0)>;
-        using l_t = std::array<e_t, 3>;
-        using m_t = std::array<l_t, 3>;
-        std::array<e_t, 3> l1{r00, r01, r02};
-        std::array<e_t, 3> l2{r10, r11, r12};
-        std::array<e_t, 3> l3{r20, r21, r22};
-        return m_t{l1, l2, l3};
-      }
-    }
-
-  template<typename Z, bool normalize>
-  KYOSU_FORCEINLINE constexpr
-  auto dispatch(eve::tag_of<kyosu::to_rotation_matrix> const&
-               , Z const& q) noexcept
-  {
-    return to_rotation_matrix(q, _::norming<normalize>{});
-  }
-
-  template<typename Z>
-  KYOSU_FORCEINLINE constexpr
-  auto dispatch(eve::tag_of<kyosu::to_multipolar> const&
-               , Z const& q) noexcept
-  {
-    auto c0 = complex(get<0>(q), get<1>(q));
-    if constexpr(kyosu::concepts::complex<Z>)
-    {
-      auto z =  eve::zero(eve::as(abs(c0)));
-      return kumi::tuple{abs(c0), arg(c0), z, z};
-    }
-    else
-    {
-      auto c1 = complex(get<2>(q), get<3>(q));
-      return kumi::tuple{abs(c0), arg(c0), abs(c1), arg(c1)};
-    }
-  }
-
-  template<typename Z>
-  KYOSU_FORCEINLINE constexpr
-  auto dispatch(eve::tag_of<kyosu::to_cylindrical> const&
-               , Z const& q) noexcept
-  {
-    auto c0 = complex(get<0>(q), get<1>(q));
-    if constexpr(kyosu::concepts::complex<Z>)
-    {
-      auto z =  eve::zero(eve::as(abs(c0)));
-      return kumi::tuple{abs(c0), arg(c0), z, z};
-    }
-    else
-    {
-      return kumi::tuple{abs(c0), arg(c0), get<2>(q), get<3>(q) };
-    }
-  }
-
-  template<typename Z>
-  KYOSU_FORCEINLINE constexpr
-  auto dispatch(eve::tag_of<kyosu::to_cylindrospherical> const&
-               , Z const& q) noexcept
-  {
-    auto q0 = get<0>(q);
-    if constexpr(kyosu::concepts::complex<Z>)
-    {
-      auto z =  eve::zero(eve::as(get<0>(q)));
-      return kumi::tuple{get<0>(q), eve::abs(get<1>(q)), z, z};
-    }
-    else
-    {
-      auto lon =  eve::pedantic(eve::atan2)(get<2>(q), get<1>(q));
-      auto lat =  eve::pedantic(eve::atan2)(get<3>(q)*eve::sin(lon),get<2>(q));
-      return kumi::tuple{get<0>(q), abs(pure(q)), lon, lat};
-    }
-  }
-
-  template<typename Z>
-  KYOSU_FORCEINLINE constexpr
-  auto dispatch(eve::tag_of<kyosu::to_semipolar> const&
-               , Z const& q) noexcept
-  {
-    auto c0 = complex(get<0>(q), get<1>(q));
-    if constexpr(kyosu::concepts::complex<Z>)
-    {
-      auto z =  eve::zero(eve::as(abs(c0)));
-      return kumi::tuple{abs(c0), z, arg(c0), z};
-    }
-    else
-    {
-      auto rho = kyosu::abs(q);
-      auto c0 = complex(get<0>(q), get<1>(q));
-      auto c1 = complex(get<2>(q), get<3>(q));
-      auto alpha = eve::pedantic(eve::atan2)(abs(c1), abs(c0));
-      auto theta1 = arg(c0);
-      auto theta2 = arg(c1);
-      return kumi::tuple{rho, alpha, theta1, theta2};
-    }
-  }
-
-  template<typename Z>
-  KYOSU_FORCEINLINE constexpr
-  auto dispatch(eve::tag_of<kyosu::to_spherical> const&
-               , Z q) noexcept
-  {
-    if constexpr(kyosu::concepts::complex<Z>)
-    {
-      auto c0 = complex(get<0>(q), get<1>(q));
-      auto z =  eve::zero(eve::as(abs(c0)));
-      return kumi::tuple{abs(c0), arg(c0), z, z};
-    }
-    else
-    {
-      auto rho = kyosu::abs(q);
-      auto phi2 = eve::asin(get<3>(q)/rho);
-      get<3>(q) = 0;
-      auto rho1 = kyosu::abs(q);
-      auto phi1 = eve::asin(get<2>(q)/rho1);
-      get<2>(q) = 0;
-      auto rho2 = kyosu::abs(q);
-      auto theta= eve::asin(get<1>(q)/rho2);
-      return kumi::tuple{rho, theta, phi1, phi2};
-    }
-  }
-
-  template<typename Z, typename M, bool normalize>
-  KYOSU_FORCEINLINE constexpr
-  auto dispatch(eve::tag_of<kyosu::rotate_vec> const&
-               , Z const & q
-               , M const & v
-               , _::norming<normalize>) noexcept
-  {
-    using e_t = std::decay_t<decltype(kyosu::real(q))>;
-    using v_t = decltype(v[0]+e_t());
-    if constexpr (!normalize) EVE_ASSERT(eve::all(eve::pedantic(kyosu::is_unitary)(q)), "some quaternions are not unitary");
-    std::array<v_t, 3> w, wp;
-    using a_t = decltype(kyosu::abs(q));
-    a_t fac(2);
-    if constexpr(normalize) fac *= kyosu::rec(kyosu::sqr_abs(q));
-    auto [r, i, j, k] = q;
-    w[0] = eve::fma(r, v[0], eve::diff_of_prod(j, v[2], k, v[1]));
-    w[1] = eve::fma(r, v[1], eve::diff_of_prod(k, v[0], i, v[2]));
-    w[2] = eve::fma(r, v[2], eve::diff_of_prod(i, v[1], j, v[0]));
-
-    wp[0] = eve::fam(v[0], fac, eve::diff_of_prod(j, w[2], k, w[1]));
-    wp[1] = eve::fam(v[1], fac, eve::diff_of_prod(k, w[0], i, w[2]));
-    wp[2] = eve::fam(v[2], fac, eve::diff_of_prod(i, w[1], j, w[0]));
-    return wp;
-  }
-
-  template<typename Z, typename M>
-  KYOSU_FORCEINLINE constexpr
-  auto dispatch(eve::tag_of<kyosu::rotate_vec> const&
-               , Z const & q
-               , M const & v) noexcept
-  {
-    return rotate_vec(q, v, _::norming<true>{});
-  }
-
-  template<typename Z>
-  KYOSU_FORCEINLINE constexpr
-  auto dispatch(eve::tag_of<kyosu::rot_axis> const&
-               , Z const& q) noexcept
-  {
-    using e_t = std::decay_t<decltype(real(q))>;
-    auto invn = eve::rec(kyosu::abs(kyosu::pure(q)));
-    invn = eve::if_else(eve::is_nan(invn), eve::zero, invn);
-    std::array<e_t, 3> v{kyosu::ipart(q)*invn, kyosu::jpart(q)*invn, kyosu::kpart(q)*invn};
-    return v;
-  }
-
-  template<typename Z>
-  KYOSU_FORCEINLINE constexpr
-  auto dispatch(eve::tag_of<kyosu::rot_angle> const&
-                           , const Z &q) noexcept
-  {
-    return 2*eve::pedantic(eve::atan2)(kyosu::abs(kyosu::pure(q)), kyosu::real(q));
-  }
-
-  template<typename Z>
-  KYOSU_FORCEINLINE constexpr
-  auto dispatch(eve::tag_of<kyosu::to_angle_axis> const&
-                           , Z q) noexcept
-  {
-    q =  sign(q);
-    using e_t = std::decay_t<decltype(real(q))>;
-    auto ap = kyosu::abs(pure(q));
-    auto invn = eve::rec(ap);
-    invn = eve::if_else(eve::is_infinite(invn), eve::zero, invn);
-    std::array<e_t, 3> v{kyosu::ipart(q)*invn, kyosu::jpart(q)*invn, kyosu::kpart(q)*invn};
-    auto a =  2*eve::pedantic(eve::atan2)(ap, kyosu::real(q));
-    return kumi::tuple{a, v};
-  }
-
-  template<typename Z1, typename Z2, eve::floating_ordered_value T>
-  KYOSU_FORCEINLINE constexpr
-  auto dispatch(eve::tag_of<kyosu::slerp> const&
-               , Z1 z1, Z2  z2, T const & t
-               ) noexcept
-  {
-    EVE_ASSERT(eve::all(is_unitary(z1) && is_unitary(z2)), "quaternion parameters must be unitary");
-    auto gez = eve::is_gez(kyosu::dot(z1, z2));
-    auto mix = kyosu::if_else(gez, z2, -z2);
-    return z1*kyosu::pow(kyosu::conj(z1)*mix, t);
-  }
-
-}