∫ Утверждение Mathlib
instNonUnitalNonAssocRing
Mathlib.Algebra.Ring.Opposite
URI: https://scilib.ai/kg/mathlib#MulOpposite.instNonUnitalNonAssocRing
∫ Утверждение Mathlib
Mathlib.Algebra.Ring.Opposite
URI: https://scilib.ai/kg/mathlib#MulOpposite.instNonUnitalNonAssocRing