proposition: Lemma is_z_iso_disp_transportf {C : category} {D : disp_cat C} {x y : C} {f f' : z_iso x y} (e : f = f') {xx : D x} {yy} {ff : xx -->[f] yy} (is : is_z_iso_disp _ ff) : is_z_iso_disp f' (transportf _ (maponpaths _ e) ff).
proof: Proof. induction e. apply is. Qed.
imports: UniMath.Foundations.Sets UniMath.MoreFoundations.PartA UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.Univalence UniMath.CategoryTheory.DisplayedCats.Core