∀ {α : Type u_1} {β : Type u_2} {γ : Type u_3} {m : MeasurableSpace α} {mβ : MeasurableSpace β} {mγ : MeasurableSpace γ}
  {f : α → β → γ}, Measurable (Function.uncurry f) → ∀ {x : α}, Measurable (f x)