∀ {α : Type u_1} [inst : MeasurableSpace α] (μ : MeasureTheory.Measure α) ⦃A : Set α⦄
  (motive : MeasurableSet A ∧ μ A ≠ ⊤ → Prop) (h : MeasurableSet A ∧ μ A ≠ ⊤),
  (∀ (hA1 : MeasurableSet A) (hA2 : μ A ≠ ⊤), motive ⋯) → motive h