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Mathlib.CategoryTheory.Comma.CatCommSq

2-commutative squares of categories of arrows #

@[implicit_reducible]
instance CategoryTheory.Arrow.catCommSq {C₁ : Type u_1} {C₂ : Type u_2} {D₁ : Type u_3} {D₂ : Type u_4} [Category.{u_5, u_1} C₁] [Category.{u_6, u_2} C₂] [Category.{u_7, u_3} D₁] [Category.{u_8, u_4} D₂] (T : Functor C₁ C₂) (L : Functor C₁ D₁) (R : Functor C₂ D₂) (B : Functor D₁ D₂) [CatCommSq T L R B] :
Equations
@[simp]
theorem CategoryTheory.Arrow.catCommSq_iso {C₁ : Type u_1} {C₂ : Type u_2} {D₁ : Type u_3} {D₂ : Type u_4} [Category.{u_5, u_1} C₁] [Category.{u_6, u_2} C₂] [Category.{u_7, u_3} D₁] [Category.{u_8, u_4} D₂] (T : Functor C₁ C₂) (L : Functor C₁ D₁) (R : Functor C₂ D₂) (B : Functor D₁ D₂) [CatCommSq T L R B] :