proposition: Lemma antisymm_po_category_isoiseq (PO : po X) {A B : (po_category PO)} (poasymm : isantisymm PO) (isoAB : z_iso A B) : A = B.
proof: Proof. apply poasymm. apply (z_iso_mor isoAB). apply (inv_from_z_iso isoAB). Defined.
imports: UniMath.Foundations.HLevels UniMath.Foundations.Sets UniMath.Foundations.Propositions UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.Univalence