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Theorems · Theorem · measure theory

MeasureTheory.Measure.restrict_iUnion

∀ {α : Type u_2} {ι : Type u_6} {m0 : MeasurableSpace α} {μ : MeasureTheory.Measure α} [Countable ι] {s : ι → Set α},
  Pairwise (Function.onFun Disjoint s) →
    (∀ (i : ι), MeasurableSet (s i)) → μ.restrict (⋃ i, s i) = MeasureTheory.Measure.sum fun i => μ.restrict (s i)
Defined in
Mathlib.MeasureTheory.Measure.Restrict
Cited by
2 results in Mathlib
Foundations
Depth 198 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
Countable

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