Theorems · Theorem · category theory

CategoryTheory.NonPreadditiveAbelian.sub_def

∀ {C : Type u} [inst : CategoryTheory.Category.{v, u} C] [inst_1 : CategoryTheory.NonPreadditiveAbelian C] {X Y : C}
  (a b : X ⟶ Y),
  a - b =
    CategoryTheory.CategoryStruct.comp (CategoryTheory.Limits.prod.lift a b) CategoryTheory.NonPreadditiveAbelian.σ

Defined in

Mathlib.CategoryTheory.Abelian.NonPreadditive

Cited by

5 results in Mathlib

Foundations

Depth 76 from the axioms · uses propext, Classical.choice, Quot.sound

Assumes

CategoryTheory.CategoryCategoryTheory.NonPreadditiveAbelian