Definition sum_of_functor_inl_nat_z_iso {Q C₁ C₂ : category} (F : C₁ ⟶ Q) (G : C₂ ⟶ Q) : nat_z_iso (inl_functor C₁ C₂ ∙ sum_of_functors F G) F. Proof. use make_nat_z_iso. - exact (sum_of_functor_inl F G). - exact (sum_of_functor_inl_is_nat_z_iso F G). Defined.
Require Import UniMath.Foundations.All. Require Import UniMath.MoreFoundations.All. Require Import UniMath.CategoryTheory.Core.Categories. Require Import UniMath.CategoryTheory.Core.Functors. Require Import UniMath.CategoryTheory.Core.NaturalTransformations. Require Import UniMath.CategoryTheory.Core.Isos. Require Import UniMath.CategoryTheory.Core.Univalence. Require Import UniMath.CategoryTheory.whiskering.