fact: Definition iso_inv_from_is_iso {C : precategory} {a b : ob C} (f : a --> b) (H : is_iso f) : iso b a := iso_inv_from_iso (f,,H).
imports: UniMath.Foundations.PartA UniMath.Foundations.Propositions UniMath.Foundations.Sets UniMath.MoreFoundations.Tactics UniMath.CategoryTheory.Core.Categories