Fermat's Last Theorem

An ongoing multi-author open source project to formalise a proof of Fermat's Last Theorem in the Lean theorem prover.

Information about the project

The project is currently being led by Kevin Buzzard. Until September 2029 it is being funded by grant EP/Y022904/1, awarded by the EPSRC. The project is hosted at Imperial College London. Kevin would like to extend many many thanks to both of these institutions for their ongoing support of this nonstandard research.

General information ("What is Fermat's Last Theorem/Lean?" / "Why are you doing this?" etc) is here.

The route we will be taking was planned out essentially entirely by Richard Taylor in discussions with Buzzard. It is a modern variant of the original Wiles/Taylor-Wiles proof, borrowing heavily from the ideas of Khare and Wintenberger. For more details about the mathematics behind the proof, a good place to start is the blueprint.

Information on how to contribute is available here.