Definition iso_inv_from_iso {C : precategory} {a b : C} (f : iso a b) : iso b a := tpair _ _ (is_iso_inv_from_iso f).
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.