# Claude Code and the Jacobian Conjecture Counterexample > Source: > Published: 2026-07-25 06:45:32+00:00 # Claude Code and the Jacobian Conjecture Counterexample [Claude](/en/tags/claude/)utilized a pipeline I spent two years building to get there. I released this implementation under CC0 about a month ago, and seeing an LLM apply it to a problem of this magnitude is a wild validation of the work. For those interested in the technical trail, the entire development process—including logs and discussions with the original paper's authors—is documented in the repository. This wasn't a quick build; it was a deep dive into modeling specific mathematical boundaries. The actual implementation used by Claude can be found here: ``` https://github.com/JGPTech/Fun/tree/main/Jacobian ``` If you want to see the specific commit where the package was released to the public: ``` https://github.com/JGPTech/Fun/commits/main/current_paper_locality_boundary_package ``` The logic was modeled after this specific research: ``` https://www.nature.com/articles/s41467-026-73900-9 ``` It's a fascinating example of a real-world AI workflow where a human-developed tool provides the structural framework that allows an LLM agent to break through a long-standing mathematical wall. The fact that the mathematical community is now analyzing structures I developed as part of this counterexample is an incredible feeling. [Next Context Engineering: Why More Tokens ≠ Better Code →](/en/threads/3078/)