simp at hs
case h.zero
s : Finset ℕ
x : ℕ
hx : x ∈ s
hs : Nat.zero = 0 → s = ∅
⊢ x ^ ↑(Nat.factorization (Nat.centralBinom Nat.zero)) x ≤ 2 * Nat.zero
case h.zero
s : Finset ℕ
x : ℕ
hx : x ∈ s
hs : s = ∅
⊢ x ^ ↑(Nat.factorization (Nat.centralBinom Nat.zero)) x ≤ 2 * Nat.zero