Definition disp_invertible_2cell_lassociator {B : bicat} {w x y z : B} {f : w --> x} {g : x --> y} {h : y --> z} {D : disp_bicat B} {ww : D w} {xx : D x} {yy : D y} {zz : D z} (ff : ww -->[f] xx) (gg : xx -->[g] yy) (hh : yy -->[h] zz) : disp_invertible_2cell (lassociator f g h,, is_invertible_2cell_lassociator f g h) _ _ := disp_lassociator ff gg hh,, is_disp_invertible_2cell_lassociator ff gg hh.
Require Import UniMath.Foundations.All. Require Import UniMath.MoreFoundations.All. Require Import UniMath.CategoryTheory.Core.Categories. Require Import UniMath.Bicategories.Core.Bicat. Import Bicat.Notations. Require Import UniMath.CategoryTheory.DisplayedCats.Core. Require Import UniMath.CategoryTheory.DisplayedCats.Isos. Require Import UniMath.Bicategories.DisplayedBicats.DispBicat. Import DispBicat.Notations. Require Import UniMath.Bicategories.Core.Unitors. Require Import UniMath.Bicategories.Core.Univalence. Require Import UniMath.Bicategories.Core.Invertible_2cells.