∫ Утверждение Mathlib
toAddSubgroup_lt_toAddSubgroup
Mathlib.Algebra.Ring.Subring.Basic
URI: https://scilib.ai/kg/mathlib#Subring.toAddSubgroup_lt_toAddSubgroup
∫ Утверждение Mathlib
Mathlib.Algebra.Ring.Subring.Basic
URI: https://scilib.ai/kg/mathlib#Subring.toAddSubgroup_lt_toAddSubgroup