fact: Definition und_ver_cat_precategory_data (C: predoublecategory_hor_sq) : precategory_data := make_precategory_data (make_precategory_ob_mor (und_ver_cat_ob C) (und_ver_cat_ob_mor C)) (und_ver_cat_id C) (und_ver_cat_comp C).
imports: UniMath.Foundations.Propositions UniMath.Foundations.Sets UniMath.MoreFoundations.PartA UniMath.MoreFoundations.Notations UniMath.CategoryTheory.Core.Prelude UniMath.CategoryTheory.TwoSidedDisplayedCats.TwoSidedDispCat UniMath.CategoryTheory.TwoSidedDisplayedCats.Univalence