fact: Definition disp_lassociator {a b c d : C} {f : C⟦a,b⟧} {g : C⟦b,c⟧} {h : C⟦c,d⟧} {w : D a} {x : D b} {y : D c} {z : D d} (ff : w -->[f] x) (gg : x -->[g] y) (hh : y -->[h] z) : ff ;; (gg ;; hh) ==>[lassociator _ _ _] (ff ;; gg) ;; hh := pr1 (pr2 (pr2 (pr2 (pr2 (pr2 (pr2 (pr2 D))))))) _ _ _ _ _ _ _ w _ _ _ ff gg hh.
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.DisplayedCats.Core UniMath.CategoryTheory.DisplayedCats.Total UniMath.Bicategories.Core.Bicat UniMath.Bicategories.Core.Invertible_2cells UniMath.Bicategories.Core.BicategoryLaws UniMath.Bicategories.Core.Unitors UniMath.Bicategories.Morphisms.Adjunctions UniMath.Bicategories.Core.Univalence