Lemma hcomp_hcomp' {a b c : C} {f1 f2 : C⟦a, b⟧} {g1 g2 : C⟦b, c⟧} (η : f1 ==> f2) (φ : g1 ==> g2) : hcomp η φ = hcomp' η φ. Proof. apply vcomp_whisker. Qed.
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.Functors. Require Import UniMath.CategoryTheory.Core.NaturalTransformations. Require Import UniMath.CategoryTheory.PrecategoryBinProduct.