{α : Type u_1} →
  {m0 : MeasurableSpace α} →
    {μ : MeasureTheory.Measure α} →
      {motive : MeasureTheory.SigmaFinite μ → Sort u} →
        ((out' : Nonempty (μ.FiniteSpanningSetsIn Set.univ)) → motive ⋯) → (t : MeasureTheory.SigmaFinite μ) → motive t