fact: Definition po_precategory_ob_mor (PO : po X) : precategory_ob_mor := make_precategory_ob_mor X (carrierofpo X PO).
imports: UniMath.Foundations.HLevels UniMath.Foundations.Sets UniMath.Foundations.Propositions UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.Univalence