Theorems · Theorem · category theory

CategoryTheory.Limits.CatCospanTransform.whiskerleft_id

∀ {A : Type u₁} {B : Type u₂} {C : Type u₃} {A' : Type u₄} {B' : Type u₅} {C' : Type u₆} {A'' : Type u₇} {B'' : Type u₈}
  {C'' : Type u₉} [inst : CategoryTheory.Category.{v₁, u₁} A] [inst_1 : CategoryTheory.Category.{v₂, u₂} B]
  [inst_2 : CategoryTheory.Category.{v₃, u₃} C] {F : CategoryTheory.Functor A B} {G : CategoryTheory.Functor C B}
  [inst_3 : CategoryTheory.Category.{v₄, u₄} A'] [inst_4 : CategoryTheory.Category.{v₅, u₅} B']
  [inst_5 : CategoryTheory.Category.{v₆, u₆} C'] {F' : CategoryTheory.Functor A' B'} {G' : CategoryTheory.Functor C' B'}
  [inst_6 : CategoryTheory.Category.{v₇, u₇} A''] [inst_7 : CategoryTheory.Category.{v₈, u₈} B'']
  [inst_8 : CategoryTheory.Category.{v₉, u₉} C''] {F'' : CategoryTheory.Functor A'' B''}
  {G'' : CategoryTheory.Functor C'' B''} {ψ : CategoryTheory.Limits.CatCospanTransform F G F' G'}
  {φ : CategoryTheory.Limits.CatCospanTransform F' G' F'' G''},
  CategoryTheory.Limits.CatCospanTransformMorphism.whiskerLeft ψ (CategoryTheory.CategoryStruct.id φ) =
    CategoryTheory.CategoryStruct.id (ψ.comp φ)

Defined in

Mathlib.CategoryTheory.Limits.Shapes.Pullback.Categorical.CatCospanTransform

Cited by

1 results in Mathlib

Foundations

Depth 34 from the axioms · uses propext, Classical.choice, Quot.sound

Assumes

CategoryTheory.CategoryCategoryTheory.CategoryCategoryTheory.CategoryCategoryTheory.CategoryCategoryTheory.CategoryCategoryTheory.CategoryCategoryTheory.CategoryCategoryTheory.CategoryCategoryTheory.Category