fact: Definition disp_vcomp_lcancel {b₁ b₂ : C} {f g h : b₁ --> b₂} {α : f ==> g} {β : g ==> h} (Hα : is_invertible_2cell α) {bb₁ : D b₁} {bb₂ : D b₂} {ff : bb₁ -->[ f ] bb₂} {gg : bb₁ -->[ g ] bb₂} {hh : bb₁ -->[ h ] bb₂} {αα : ff ==>[ α ] gg} {ββ₁ ββ₂ : gg ==>[ β ] hh} (Hαα : is_disp_invertible_2cell Hα αα) (p : αα •• ββ₁ = αα •• ββ₂) : ββ₁ = ββ₂.
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