proposition: Lemma rwhisker_hcomp {X Y Z : C} {f g : C⟦X,Y⟧} (h : C⟦Y,Z⟧) (α : f ==> g) : α ▹ h = α ⋆ id₂ h.
proof: Proof. apply pathsinv0. apply hcomp_identity_right. Qed.
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.Bicategories.Core.Bicat UniMath.Bicategories.Core.Invertible_2cells UniMath.Bicategories.Core.Unitors