∫ Утверждение Mathlib
mem_closure_of_mem
Mathlib.RingTheory.NonUnitalSubring.Basic
URI: https://scilib.ai/kg/mathlib#NonUnitalSubring.mem_closure_of_mem
∫ Утверждение Mathlib
Mathlib.RingTheory.NonUnitalSubring.Basic
URI: https://scilib.ai/kg/mathlib#NonUnitalSubring.mem_closure_of_mem