Definition nat_trans_inv_from_pointwise_inv (C : precategory_data)(D : precategory) (hs: has_homsets D) (F G : ob [C,D,hs]) (A : F --> G) (H : is_nat_iso A) : G --> F := tpair _ _ (is_nat_trans_inv_from_pointwise_inv _ _ _ _ _ _ H).
Require Import UniMath.Foundations.Propositions. Require Import UniMath.MoreFoundations.Tactics. Require Import UniMath.MoreFoundations.Univalence. Require Import UniMath.CategoryTheory.Core.Categories. Require Import UniMath.CategoryTheory.Core.Isos. Require Import UniMath.CategoryTheory.Core.TransportMorphisms. Require Import UniMath.CategoryTheory.Core.Functors. Require Import UniMath.CategoryTheory.Core.NaturalTransformations. Require Import UniMath.CategoryTheory.Core.Univalence.