Definition nat_z_iso_fix_fst_arg: nat_z_iso (functor_fix_fst_arg C D E F c) (functor_fix_fst_arg C D E F' c) := make_nat_z_iso _ _ nattrans nat_z_iso_fix_fst_arg_ax.
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.Univalence. Require Import UniMath.CategoryTheory.Core.Functors. Require Import UniMath.CategoryTheory.Core.NaturalTransformations. Require Import UniMath.CategoryTheory.FunctorCategory. Require Import UniMath.CategoryTheory.opp_precat.