∫ Утверждение Mathlib
smul_opposite_mul
Mathlib.Algebra.Group.Subgroup.MulOppositeLemmas
URI: https://scilib.ai/kg/mathlib#Subgroup.smul_opposite_mul
∫ Утверждение Mathlib
Mathlib.Algebra.Group.Subgroup.MulOppositeLemmas
URI: https://scilib.ai/kg/mathlib#Subgroup.smul_opposite_mul