proposition: Lemma composition_of : pointwise (F' o F) (G' o G) = pointwise F G' o pointwise F' G.
proof: Proof. path_functor. exists composition_of_helper. unfold composition_of_helper. abstract functor_pointwise_t composition_of_helper_helper composition_of_helper_helper_object_of. Defined.
imports: Category.Core Functor.Core Functor.Pointwise.Core NaturalTransformation.Core NaturalTransformation.Paths Functor.Composition.Core Functor.Identity Functor.Paths PathGroupoids Types.Forall HoTT.Tactics Basics.Tactics