Definition make_nat_trans {C C' : precategory_data} (F F' : functor_data C C') (t : nat_trans_data F F') (H : is_nat_trans F F' t) : nat_trans F F'. Proof. exists t. exact H. Defined.
Require Import UniMath.Foundations.All. Require Import UniMath.MoreFoundations.All. 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.Univalence.