fact: Definition id_hor_right {C : predoublecategory_hor} {a b : C} (f: a -h-> b) : f ·h hor_identity b = f := get_id_hor_right C a b 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