proposition: Lemma hcomp_identity_right {a b c : C} (f1 f2 : C ⟦ a, b ⟧)(g : C ⟦ b, c ⟧) (x : f1 ==> f2) : x ⋆ id2 g = rwhisker g x.
proof: Proof. unfold hcomp. rewrite lwhisker_id2. apply id2_right. Qed.
imports: UniMath.Tactics.EnsureStructuredProofs UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Isos UniMath.CategoryTheory.Core.Functors UniMath.CategoryTheory.Core.NaturalTransformations UniMath.CategoryTheory.PrecategoryBinProduct