∫ Утверждение Mathlib
smul_eq_zero_of_mem
Mathlib.RingTheory.Extension.Basic
URI: https://scilib.ai/kg/mathlib#Algebra.Extension.Cotangent.smul_eq_zero_of_mem
∫ Утверждение Mathlib
Mathlib.RingTheory.Extension.Basic
URI: https://scilib.ai/kg/mathlib#Algebra.Extension.Cotangent.smul_eq_zero_of_mem