Definition make_z_iso' {C : precategory_data} {a b : C} (f : a --> b) (H : is_z_isomorphism f) : z_iso a b := (f,,H).
Require Import UniMath.Foundations.PartA. Require Import UniMath.Foundations.Propositions. Require Import UniMath.Foundations.Sets. Require Import UniMath.MoreFoundations.Tactics. Require Import UniMath.CategoryTheory.Core.Categories.