no goals
ι : Type u_2
α : ι → Type u_1
f f₁ f₂ : (i : ι) → Filter (α i)
s : (i : ι) → Set (α i)
⊢ NeBot (Filter.coprodᵢ f) ↔ (∀ (i : ι), Nonempty (α i)) ∧ ∃ d, NeBot (f d)
simp only [Filter.coprodᵢ, iSup_neBot, ← exists_and_left, ← comap_eval_neBot_iff']