proposition: Corollary exp_out_in {x y : C} : exp_out ∘ exp_in ≈ @id _ (F y ^ F x).
proof: Proof. apply iso_to_from. Qed.
imports: Category.Lib Category.Theory.Category Category.Theory.Isomorphism Category.Theory.Functor Category.Structure.Cartesian Category.Structure.Cartesian.Closed Category.Functor.Structure.Cartesian