The FPC kernel extended with copy-clauses

This supports outer-deskolemization and other client/kernel term rewriting techniques.

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Accompanying paper:

Kaustuv Chaudhuri, Matteo Manighetti, Dale Miller, "A proof-theoretic approach to certifying deskolemization", 2018. http://chaudhuri.info/papers/draft18skolem.pdf

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Contents of the repository

General utilities

• Makefile
• lib.mod
• lib.sig

Basic support for logic and the kernel

• classical.mod
• classical.sig
• lkf-certificates.sig
• lkf-formulas.mod
• lkf-formulas.sig
• lkf-kernel.mod
• lkf-kernel.sig

Example 1: Geometric axioms

• geo-fpc.mod
• geo-fpc.sig
• geo-examples.mod
• geo-examples.sig

Example 2: Expansion trees

• exp-fpc.mod
• exp-fpc.sig
• exp-examples.mod
• exp-examples.sig