∫ Утверждение Mathlib
mulSupport_eq_preimage
Mathlib.Algebra.Notation.Support
URI: https://scilib.ai/kg/mathlib#Function.mulSupport_eq_preimage
∫ Утверждение Mathlib
Mathlib.Algebra.Notation.Support
URI: https://scilib.ai/kg/mathlib#Function.mulSupport_eq_preimage