proposition: Lemma nat_z_iso_inv_iso (α: nat_z_iso F G) (c:C) (d:D c) : nat_z_iso_to_trans_inv α c · α c = identity (G c).
proof: Proof. apply (pr2 (pr2 α c)). Qed.
imports: UniMath.Foundations.Sets UniMath.MoreFoundations.PartA UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Core.NaturalTransformations UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.whiskering UniMath.CategoryTheory.FunctorCategory UniMath.CategoryTheory.DisplayedCats.Core UniMath.CategoryTheory.DisplayedCats.Functors UniMath.CategoryTheory.DisplayedCats.Isos