s d (m : morphism (C -> D) s d) : morphism (C' -> D') (pointwise_object_of s) (pointwise_object_of d) := Eval simpl in G oL m oR F.
Require Import Category.Core Functor.Core FunctorCategory.Core NaturalTransformation.Paths Functor.Composition.Core NaturalTransformation.Composition.Core.