Lemma bc_whisker_r_id₂ {C : bicat} {X Y Z : C} (f : C⟦X,Y⟧) (g : C⟦Y,Z⟧) : (id₂ g) ▻ f = id₂ (g ∘ f). Proof. apply lwhisker_id2. 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.Bicategories.Core.Bicat. Import Bicat.Notations.