fact: Definition vcomp_disp_is_invertible : is_disp_invertible_2cell (comp_of_invertible_2cell α β) (αα •• ββ).
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.Bicategories.Core.Bicat UniMath.CategoryTheory.DisplayedCats.Core UniMath.CategoryTheory.DisplayedCats.Isos UniMath.Bicategories.DisplayedBicats.DispBicat UniMath.Bicategories.Core.Unitors UniMath.Bicategories.Core.Univalence UniMath.Bicategories.Core.Invertible_2cells