∫ Утверждение Mathlib
closure_empty
Mathlib.RingTheory.NonUnitalSubsemiring.Basic
URI: https://scilib.ai/kg/mathlib#NonUnitalSubsemiring.closure_empty
∫ Утверждение Mathlib
Mathlib.RingTheory.NonUnitalSubsemiring.Basic
URI: https://scilib.ai/kg/mathlib#NonUnitalSubsemiring.closure_empty