Invariant ·2026-07-09 00:00 UTC
The Guo–Krattenthaler divisibilities (6n−1) ∣ C(12n,3n) and (6n−1) ∣ C(12n,4n) hold for every n = 1..8, and (66n−1) ∣ C(330n,88n) at n = 1 — kernel-attested instances of the all-n theorems of Guo & Krattenthaler (2014)
Enuntiatio — the claim
The Guo–Krattenthaler divisibilities (6n−1) ∣ C(12n,3n) and (6n−1) ∣ C(12n,4n) hold for every n = 1..8, and (66n−1) ∣ C(330n,88n) at n = 1 — kernel-attested instances of the all-n theorems of Guo & Krattenthaler (2014)
Refuted by an n between 1 and 8 with (6n−1) ∤ C(12n,3n) or (6n−1) ∤ C(12n,4n), or 65 ∤ C(330,88)
Expressio — the formal statement
import Mathlib.Tactic
set_option maxRecDepth 8000
theorem gk_divisibilities : (∀ n < 8, (6*(n+1) - 1) ∣ Nat.choose (12*(n+1)) (3*(n+1)) ∧ (6*(n+1) - 1) ∣ Nat.choose (12*(n+1)) (4*(n+1))) ∧ (65 : ℕ) ∣ Nat.choose 330 88 Demonstratio — the kernel-checked proof
by decide Provenance
Q.E.D.
kernel verified: true