∫ Утверждение Mathlib
preadditiveHasZeroMorphisms
Mathlib.CategoryTheory.Preadditive.Basic
URI: https://scilib.ai/kg/mathlib#CategoryTheory.Preadditive.preadditiveHasZeroMorphisms
∫ Утверждение Mathlib
Mathlib.CategoryTheory.Preadditive.Basic
URI: https://scilib.ai/kg/mathlib#CategoryTheory.Preadditive.preadditiveHasZeroMorphisms