∀ {Ω : Type u_2} {m m0 : MeasurableSpace Ω} {μ : MeasureTheory.Measure Ω} [inst : StandardBorelSpace Ω] (hm : m ≤ m0)
  [hμ : MeasureTheory.IsFiniteMeasure μ] {t : Set Ω},
  MeasurableSet t →
    ProbabilityTheory.CondIndepSet m hm t t μ →
      ∀ᵐ (ω : Ω) ∂μ, μ[t.indicator fun ω => 1 | m] ω = 0 ∨ μ[t.indicator fun ω => 1 | m] ω = 1