∀ {α : Type u_1} {β : Type u_2} [inst : CommGroup α] [inst_1 : UniformSpace α] [IsUniformGroup α] {f : β → α}
  [CompleteSpace α], Multipliable f ↔ ∀ e ∈ nhds 1, ∃ s, ∀ (t : Finset β), Disjoint t s → ∏ b ∈ t, f b ∈ e