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Theorems · Theorem · probability

MeasureTheory.Integrable.uniformIntegrable_condExp_filtration

∀ {Ω : Type u_1} {ι : Type u_2} {m : MeasurableSpace Ω} [inst : Preorder ι] {μ : MeasureTheory.Measure Ω}
  [MeasureTheory.IsFiniteMeasure μ] {f : MeasureTheory.Filtration ι m} {g : Ω → ℝ},
  MeasureTheory.Integrable g μ → MeasureTheory.UniformIntegrable (fun i => μ[g | ↑f i]) 1 μ

Given an integrable function g, the conditional expectations of g with respect to a filtration is uniformly integrable.

Defined in
Mathlib.Probability.Process.Filtration
Cited by
2 results in Mathlib
Foundations
Depth 314 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
PreorderMeasureTheory.IsFiniteMeasure

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