∫ Утверждение Mathlib
instNonUnitalCommRing
Mathlib.RingTheory.NonUnitalSubring.Basic
URI: https://scilib.ai/kg/mathlib#NonUnitalSubring.center.instNonUnitalCommRing
∫ Утверждение Mathlib
Mathlib.RingTheory.NonUnitalSubring.Basic
URI: https://scilib.ai/kg/mathlib#NonUnitalSubring.center.instNonUnitalCommRing