∀ {α : Type u_1} {R : Type u_2} [inst : Semiring R] [inst_1 : PartialOrder R] [IsStrictOrderedRing R] [Archimedean R]
  {f : α → ℕ} {l : Filter α}, Filter.Tendsto (fun n => ↑(f n)) l Filter.atTop ↔ Filter.Tendsto f l Filter.atTop