proposition: Lemma idtoiso_disp {C} {D : disp_cat C} {x x' : C} (e : x = x') {xx : D x} {xx' : D x'} (ee : transportf _ e xx = xx') : z_iso_disp (idtoiso e) xx xx'.
proof: Proof. destruct e, ee; apply identity_z_iso_disp. Defined.
imports: UniMath.Foundations.Sets UniMath.MoreFoundations.PartA UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.Univalence UniMath.CategoryTheory.DisplayedCats.Core