∫ Утверждение Mathlib
sub_add
Mathlib.CategoryTheory.Abelian.NonPreadditive
URI: https://scilib.ai/kg/mathlib#CategoryTheory.NonPreadditiveAbelian.sub_add
∫ Утверждение Mathlib
Mathlib.CategoryTheory.Abelian.NonPreadditive
URI: https://scilib.ai/kg/mathlib#CategoryTheory.NonPreadditiveAbelian.sub_add