∫ Утверждение Mathlib
isPiSystem_measurableSet
Mathlib.MeasureTheory.PiSystem
URI: https://scilib.ai/kg/mathlib#MeasurableSpace.isPiSystem_measurableSet
∫ Утверждение Mathlib
Mathlib.MeasureTheory.PiSystem
URI: https://scilib.ai/kg/mathlib#MeasurableSpace.isPiSystem_measurableSet