proposition: Proposition eq_cod_mor {x y : C} {xx : cod_disp_data x} {yy : cod_disp_data y} {f : x --> y} {ff gg : xx -->[ f ] yy} (p : pr1 ff = pr1 gg) : ff = gg.
proof: Proof. use subtypePath. { intro. apply homset_property. } exact p. Qed.
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Prelude UniMath.CategoryTheory.Limits.Pullbacks UniMath.CategoryTheory.DisplayedCats.Core UniMath.CategoryTheory.DisplayedCats.Isos UniMath.CategoryTheory.DisplayedCats.Univalence UniMath.CategoryTheory.DisplayedCats.Fibrations