{α : Type u_1} →
  {ι : Type u_2} →
    [inst : MeasurableSpace α] →
      {μ : MeasureTheory.Measure α} →
        {l : Filter ι} →
          {φ : ι → Set α} →
            {motive : MeasureTheory.AECover μ l φ → Sort u} →
              (t : MeasureTheory.AECover μ l φ) →
                ((ae_eventually_mem : ∀ᵐ (x : α) ∂μ, ∀ᶠ (i : ι) in l, x ∈ φ i) →
                    (measurableSet : ∀ (i : ι), MeasurableSet (φ i)) → motive ⋯) →
                  motive t