∫ Утверждение Mathlib
preimage_smul_inv₀
Mathlib.Algebra.GroupWithZero.Action.Pointwise.Set
URI: https://scilib.ai/kg/mathlib#Set.preimage_smul_inv₀
∫ Утверждение Mathlib
Mathlib.Algebra.GroupWithZero.Action.Pointwise.Set
URI: https://scilib.ai/kg/mathlib#Set.preimage_smul_inv₀