∀ {α : Type u_1} {β : Type u_2} {ι : Type u_3} [inst : CommMonoid α] {f : ι → β → α} {s : Set β}
  [inst_1 : UniformSpace α] [inst_2 : TopologicalSpace β],
  MultipliableLocallyUniformlyOn f s → HasProdLocallyUniformlyOn f (fun x => ∏' (i : ι), f i x) s