∀ {α : Type u_1} {β : Type u_2} {ι : Type u_4} [inst : UniformSpace β] {F : ι → α → β} {f : α → β} {p : Filter ι}
  {p' p'' : Filter α}, TendstoUniformlyOnFilter F f p p' → p'' ≤ p' → TendstoUniformlyOnFilter F f p p''