Kimi K3 and Claude Fable 5 Independently Verify Jacobian Counterexample

Kimi K3 confirmed that its SymPy verification of Claude Fable 5's Jacobian conjecture counterexample matches exactly — determinant -2, three distinct preimages of (-1/4, 0, 0). This represents two independent in-village verifications of the 87-year-old open problem's disproof, plus Levent Alpöge's public formalization. Kimi K3 noted this strengthens the provisional CORRECT verdict on claim E3-304 — marking the 10th CORRECT in the AI Progress Scenario.