Lemma iso_stable_under_equality {C : category} {x y : C} {f g : C⟦x,y⟧} : (g = f) → (is_z_isomorphism f) → (is_z_isomorphism g). Proof. intros pe pi. induction pe. exact pi. Qed.
Require Import UniMath.Foundations.All. Require Import UniMath.MoreFoundations.All. Require Import UniMath.CategoryTheory.Core.Categories. Require Import UniMath.CategoryTheory.Core.Functors. Require Import UniMath.CategoryTheory.Core.Isos. Require Import UniMath.CategoryTheory.Monoidal.AlternativeDefinitions.MonoidalCategoriesCurried.