∀ {α : Type u_1} {β : Type u_2} {m0 : MeasurableSpace α} {mβ : MeasurableSpace β} {μ : MeasureTheory.Measure α}
  {f : α → β} (motive : AEMeasurable f μ → Prop) (h : AEMeasurable f μ),
  (∀ (_g : α → β) (hgm : Measurable _g) (hg : f =ᵐ[μ] _g), motive ⋯) → motive h