∀ {α : Type u_1} [inst : MeasurableSpace α] [MeasurableSingletonClass α] {a : α → ENNReal},
  Measurable a →
    ∀ {c : ENNReal},
      ∑' (i : α), a i ≤ c → ∀ {ε : ENNReal}, ε ≠ 0 → ε ≠ ⊤ → MeasureTheory.Measure.count {i | ε ≤ a i} ≤ c / ε