True ↔ ∀ (A : Set ℕ), (∀ a ∈ A, 2 ≤ a) → Erdos1196.IsPrimitive A → ∑' (a : ↑A), 1 / (↑↑a * Real.log ↑↑a) ≤ ∑' (p : ↑{p | Nat.Prime p}), 1 / (↑↑p * Real.log ↑↑p)