∀ {α : Type u_1} {β : Type u_2} {ι : Type u_4} [inst : UniformSpace β] {F : ι → α → β} {s : Set α} {p : Filter ι}
  {c : β}, Filter.Tendsto (↿F) (p ×ˢ Filter.principal s) (nhds c) ↔ TendstoUniformlyOn F (fun x => c) p s