This is a shallow embedding of Computation tree logic (CTL) in Coq. It is defined in Ctl/Definition.v, but Ctl/Basic.v presents the definitions as more legible theorems.
The CTL library depends on the general-purpose library "Glib".
This is a general-purpose library used by Ctl. Most notably, it exports a number of axioms, including:
- law of the excluded middle
- functional extensionality
- propositional extensionality
- choice (on propositional truncations)
It also exports several notations. To disable the printing of a particular notation, find the declaration in question in Glib/Notation.v, and add the "only parsing" option.
One should be able to build by running make. If not, you may try regenerating the makefile with the command: coq_makefile -f _CoqProject -o Makefile.