fact: Definition id_is_iso_twosided_disp {C₁ C₂ : category} {D : twosided_disp_cat C₁ C₂} {x : C₁} {y : C₂} (xy : D x y) : is_iso_twosided_disp (identity_is_z_iso x) (identity_is_z_iso y) (id_two_disp xy).
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.DisplayedCats.Core UniMath.CategoryTheory.DisplayedCats.Isos UniMath.CategoryTheory.TwoSidedDisplayedCats.TwoSidedDispCat