GitLab

Add int.NumOf realization.

- update Coq and Isabelle realizations (TODO: PVS)

From Max_is_some and Max_is_ge, one can prove that ge is a total relation.
So the consequents hold even if "ge x y" does not (since "ge y x" then
holds by totality).

 - use the syntax of the driver for the own realization of a theory
 - add a *_def lemma for defined logics with syntax
 - add comments that inform which syntax is used for declared logic

Remove axioms from int.Power realization.

Coq realization for int.Power (mostly to keep Coq proofs that were in power.mlw)