∫ Утверждение Mathlib
nnnorm_op
Mathlib.Analysis.Normed.Group.Constructions
URI: https://scilib.ai/kg/mathlib#MulOpposite.nnnorm_op
∫ Утверждение Mathlib
Mathlib.Analysis.Normed.Group.Constructions
URI: https://scilib.ai/kg/mathlib#MulOpposite.nnnorm_op