Definition rwhisker_functor_data (g : C⟦b, c⟧) : functor_data (hom a b) (hom a c). Proof. exists (fun f => f · g). exact (fun f1 f2 x => x ▹ g). 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.Functors. Require Import UniMath.CategoryTheory.Core.NaturalTransformations. Require Import UniMath.CategoryTheory.PrecategoryBinProduct.