∫ Утверждение Mathlib
instNonUnitalNormedCommRing
Mathlib.Analysis.Normed.Ring.Basic
URI: https://scilib.ai/kg/mathlib#MulOpposite.instNonUnitalNormedCommRing
∫ Утверждение Mathlib
Mathlib.Analysis.Normed.Ring.Basic
URI: https://scilib.ai/kg/mathlib#MulOpposite.instNonUnitalNormedCommRing