fact: Definition disp_2cells_iscontr {B : bicat} (D : disp_prebicat_1_id_comp_cells B) := ∏ (a b : B) (f g : a --> b) (x : f ==> g) (aa : D a) (bb : D b) (ff : aa -->[f] bb) (gg : aa -->[g] bb), iscontr (disp_2cells x ff gg).
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