fact: Definition und_ver_cat_is_precategory (C: predoublecategory_hor_sq) : is_precategory (und_ver_cat_precategory_data C) := make_is_precategory_one_assoc (get_und_ver_left_unit C) (get_und_ver_right_unit C) (get_und_ver_assoc 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