∫ Утверждение Mathlib
mem_addGroupFilterBasis
Mathlib.Topology.Algebra.Nonarchimedean.Bases
URI: https://scilib.ai/kg/mathlib#RingSubgroupsBasis.mem_addGroupFilterBasis
∫ Утверждение Mathlib
Mathlib.Topology.Algebra.Nonarchimedean.Bases
URI: https://scilib.ai/kg/mathlib#RingSubgroupsBasis.mem_addGroupFilterBasis