Showcase / sq-add-sq-eq-three-mul-sq-s2
Proved by @cgbarlow. Kernel-verified at Gate A; no human in the correctness path.
The goal record the swarm was asked to discharge — the source of truth for this proof's identity and difficulty.
The Lean statement the swarm proved, kernel-verified at Gate A.
import Mathlib
theorem three_dvd_all_of_sq_add_sq_eq_three_mul_sq (x y z : ℤ) (h : x ^ 2 + y ^ 2 = 3 * z ^ 2) : 3 ∣ x ∧ 3 ∣ y ∧ 3 ∣ z := by
sorry