proposition: Proposition runitor_v_comp_square' {B : verity_double_bicat} {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) : s ⋆v id_v_square_bicat h₂ = rinvunitor v₂ ▹s (runitor v₁ ◃s s).
proof: Proof. rewrite runitor_v_comp_square. rewrite <- rwhisker_square_comp. rewrite runitor_rinvunitor. rewrite rwhisker_square_id. apply idpath. Qed.
imports: UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Prelude UniMath.CategoryTheory.TwoSidedDisplayedCats.TwoSidedDispCat UniMath.CategoryTheory.TwoSidedDisplayedCats.Isos UniMath.CategoryTheory.TwoSidedDisplayedCats.Univalence UniMath.CategoryTheory.TwoSidedDisplayedCats.Discrete UniMath.Bicategories.Core.Bicat UniMath.Bicategories.Core.BicategoryLaws UniMath.Bicategories.Core.Unitors UniMath.Bicategories.DoubleCategories.DoubleBicat.VerityDoubleBicat