proposition: Proposition id_v_square_bicat_comp {x y z : B} (v : x --> y) (w : y --> z) : id_v_square_bicat v ⋆h id_v_square_bicat w = id_v_square_bicat (v · w).
proof: Proof. exact (pr22 (pr2 (pr122 B)) _ _ _ v w). Defined.
imports: UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Prelude UniMath.CategoryTheory.TwoSidedDisplayedCats.TwoSidedDispCat UniMath.Bicategories.Core.Bicat