proposition: Proposition rwhisker_lwhisker_square {w x y z : B} {h₁ : w --> x} {h₂ : y --> z} {v₁ v₁' : w -|-> y} {v₂ v₂' : x -|-> z} (τ : v₁ =|=> v₁') (θ : v₂ =|=> v₂') (s : square_double_bicat h₁ h₂ v₁' v₂) : θ ▹s (τ ◃s s) = τ ◃s (θ ▹s s).
proof: Proof. exact (pr22 (pr222 (pr12 (pr222 (pr12 B)))) _ _ _ _ _ _ _ _ _ _ τ θ s). Defined.
imports: UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Prelude UniMath.CategoryTheory.TwoSidedDisplayedCats.TwoSidedDispCat UniMath.Bicategories.Core.Bicat