proposition: Proposition transpose_strict_double_cat_assoc_square : strict_double_cat_assoc_square transpose_strict_double_cat_assoc.
proof: Proof. intros w₁ w₂ x₁ x₂ y₁ y₂ z₁ z₂ vw vx vy vz h₁ h₂ h₃ k₁ k₂ k₃ s₁ s₂ s₃ ; cbn. apply s_square_assoc_v. Defined.
imports: UniMath.Foundations.All UniMath.MoreFoundations.All UniMath.CategoryTheory.Core.Categories UniMath.CategoryTheory.Core.Setcategories UniMath.CategoryTheory.TwoSidedDisplayedCats.TwoSidedDispCat UniMath.CategoryTheory.TwoSidedDisplayedCats.Strictness UniMath.Bicategories.DoubleCategories.Basics.DoubleCategoryBasics UniMath.Bicategories.DoubleCategories.Basics.StrictDoubleCatBasics UniMath.Bicategories.DoubleCategories.Core.StrictDoubleCats