fact: Axiom thm_ISO : forall {A B : Type'}, forall g : B -> A, forall f : A -> B, (@ExtensionalityFacts.is_inverse A B f g) = ((forall x : B, (f (g x)) = x) /\ (forall y : A, (g (f y)) = y)).
imports: coq theory_hol types terms axioms