case hkn
p n✝ k n : ℕ
⊢ n ≤ 2 * n
p n✝ k n : ℕ
⊢ ∏ p in Finset.range (2 * n + 1), p ^ ↑(factorization (centralBinom n)) p = centralBinom n
apply prod_pow_factorization_choose
no goals
case hkn
p n✝ k n : ℕ
⊢ n ≤ 2 * n
linarith