∫ Утверждение Mathlib
instMulOpposite
Mathlib.Algebra.Group.UniqueProds.Basic
URI: https://scilib.ai/kg/mathlib#UniqueProds.instMulOpposite
∫ Утверждение Mathlib
Mathlib.Algebra.Group.UniqueProds.Basic
URI: https://scilib.ai/kg/mathlib#UniqueProds.instMulOpposite