ring
case neg
s : SelbergSieve
d : ℕ
h_dvd : ¬d ∣ P
⊢ ν d * 0 = S⁻¹ * ↑(μ d) * 0

case neg
s : SelbergSieve
d : ℕ
h_dvd : ¬d ∣ P
⊢ ∀ x ∈ P.divisors, (if d ∣ x ∧ ↑x ^ 2 ≤ y then g x else 0) = 0
case neg
s : SelbergSieve
d : ℕ
h_dvd : ¬d ∣ P
⊢ ∀ x ∈ P.divisors, (if d ∣ x ∧ ↑x ^ 2 ≤ y then g x else 0) = 0