∫ Утверждение Mathlib
instIsStableUnderRetractsIsInternallyProjective
Mathlib.CategoryTheory.Preadditive.Projective.Internal
URI: https://scilib.ai/kg/mathlib#CategoryTheory.instIsStableUnderRetractsIsInternallyProjective
∫ Утверждение Mathlib
Mathlib.CategoryTheory.Preadditive.Projective.Internal
URI: https://scilib.ai/kg/mathlib#CategoryTheory.instIsStableUnderRetractsIsInternallyProjective