fact: Definition is_z_iso_disp {C : precategory} {D : disp_cat_data C} {x y : C} (f : z_iso x y) {xx : D x} {yy : D y} (ff : xx -->[f] yy) : UU := ∑ (gg : yy -->[inv_from_z_iso f] xx), (gg ;; ff = transportb _ (z_iso_after_z_iso_inv _) (id_disp _)) × (ff ;; gg = transportb _ (z_iso_inv_after_z_iso _) (id_disp _)).
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.DisplayedCats.Core UniMath.CategoryTheory.DisplayedCats.Functors UniMath.CategoryTheory.DisplayedCats.Isos UniMath.CategoryTheory.Monoidal.WhiskeredBifunctors UniMath.CategoryTheory.Core.Isos