fact: Definition und_ver_right_unit {C: predoublecategory_hor_sq} {c d : und_ver_cat_ob C} (f: get_und_ver_cat_ob_mor c d) : (make_und_ver_cat_comp f (und_ver_cat_id C d)) = f := (und_ver_cat_morphism_eq_principle (make_und_ver_cat_comp f (und_ver_cat_id C d)) f (id_hor_right (pr1 f)) (id_hor_right (pr12 f)) (id_hor_sq_right (pr22 f))).
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