α : Type u_2
R : Type u_1
inst✝¹ : StrictOrderedRing R
inst✝ : Archimedean R
f : α → ℤ
l : Filter α
⊢ Tendsto (fun n => ↑(f n)) l atTop ↔ Tendsto (Int.cast ∘ f) l atTop
α : Type u_2
R : Type u_1
inst✝¹ : StrictOrderedRing R
inst✝ : Archimedean R
f : α → ℤ
l : Filter α
⊢ Tendsto (fun n => ↑(f n)) l atTop ↔ Tendsto f l atTop
rw [← @Int.comap_cast_atTop R, tendsto_comap_iff]
no goals
α : Type u_2
R : Type u_1
inst✝¹ : StrictOrderedRing R
inst✝ : Archimedean R
f : α → ℤ
l : Filter α
⊢ Tendsto (fun n => ↑(f n)) l atTop ↔ Tendsto (Int.cast ∘ f) l atTop
rfl