∀ {Ω : Type u_1} {ι : Type u_2} {β : Type u_3} {m' mΩ : MeasurableSpace Ω} [inst : StandardBorelSpace Ω] {hm' : m' ≤ mΩ}
  {μ : MeasureTheory.Measure Ω} [inst_1 : MeasureTheory.IsFiniteMeasure μ] {m : MeasurableSpace β} [inst_2 : Mul β]
  [MeasurableMul₂ β] {f : ι → Ω → β},
  ProbabilityTheory.iCondIndepFun m' hm' f μ →
    (∀ (i : ι), Measurable (f i)) →
      ∀ (i j k : ι), i ≠ j → i ≠ k → ProbabilityTheory.CondIndepFun m' hm' (f i) (f j * f k) μ