proposition: Proposition is_right_lifting_lift_left {k : z --> y} (θ : k ==> h) : is_right_lifting_lift ((θ ▹ g) • τ) = θ.
proof: Proof. exact (homotinvweqweq (make_weq _ (Hτ k)) θ). Qed.
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Prelude UniMath.Bicategories.Core.Bicat UniMath.Bicategories.Core.Examples.OpMorBicat UniMath.Bicategories.Core.Examples.OpCellBicat