Claude Fable produced a counterexample to the Jacobian Conjecture

# levent (@__alpoge__) Source: [https://xcancel.com/__alpoge__/status/2079028340955197566](https://xcancel.com/__alpoge__/status/2079028340955197566) [](https://xcancel.com/__alpoge__) [levent](https://xcancel.com/__alpoge__) [@\_\_alpoge\_\_](https://xcancel.com/__alpoge__) [7h](https://xcancel.com/__alpoge__/status/2079028340955197566#m) hello there the jacobian conjecture is false thanx to my close friend akhil for asking about it and my other close friend fable for working during the world cup final \(\(1\+xy\)^3 z \+ y^2 \(1\+xy\) \(4\+3xy\), y \+ 3 x \(1\+xy\)^2 z \+ 3 x y^2 \(4\+3xy\), 2 x \- 3 x^2 y \- x^3 z\): \\C^3\\to \\C^3, has jacobian determinant \-2, and sends \(0, 0, \-1/4\), \(1, \-3/2, 13/2\), and \(\-1, 3/2, 13/2\) to \(\-1/4, 0, 0\) Jul 20, 2026 · 2:19 AM UTC 514 968 6,805 2,416,605