Lemma inverse_of_assoc {C : bicat} {W X Y Z : C} (h : C⟦Y,Z⟧) (g : C⟦X,Y⟧) (f : C⟦W,X⟧) : (is_invertible_2cell_lassociator f g h)^-1 = rassociator f g h. Proof. apply idpath. 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.