proposition: Proposition rwhisker_square_id {w x y z : B} {h₁ : w --> x} {h₂ : y --> z} {v₁ : w -|-> y} {v₂ : x -|-> z} (s : square_double_bicat h₁ h₂ v₁ v₂) : id2 v₂ ▹s s = s.
proof: Proof. exact (pr1 (pr12 (pr12 B)) _ _ _ _ _ _ _ _ s). Defined.
imports: UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Prelude UniMath.CategoryTheory.TwoSidedDisplayedCats.TwoSidedDispCat UniMath.Bicategories.Core.Bicat