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Theorems · Theorem · measure theory

Measurable.ennreal_tsum

Deprecated since 2026-04-30Mathlib marks this declaration as deprecated.

∀ {α : Type u_1} {mα : MeasurableSpace α} {ι : Type u_5} [Countable ι] {f : ι → α → ENNReal},
  (∀ (i : ι), Measurable (f i)) → Measurable fun x => ∑' (i : ι), f i x
Defined in
Mathlib.MeasureTheory.Constructions.BorelSpace.Real
Cited by
2 results in Mathlib
Foundations
Depth 154 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
Countable

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