∫ Утверждение Mathlib
nsmul_singleton
Mathlib.Algebra.Order.Group.Multiset
URI: https://scilib.ai/kg/mathlib#Multiset.nsmul_singleton
∫ Утверждение Mathlib
Mathlib.Algebra.Order.Group.Multiset
URI: https://scilib.ai/kg/mathlib#Multiset.nsmul_singleton