The author of this article is also the author of this book on Fermat's Last Theorem: http://www.amazon.co.uk/Fermats-Last-Theorem-Simon-Singh/dp/1841157910 http

The author of this article is also the author of this book on Fermat's Last Theorem: http://www.amazon.co.uk/Fermats-Last-Theorem-Simon-Singh/dp/1841157910 http://www.amazon.co.uk/Fermats-Last-Theorem-Simon-Singh/dp/... Given the eventual proof of Fermat's last theorem there's a solid argument that Fermat hadn't successfully proved it (and certainly couldn't have in the way it was eventually done), but it's also far from clear whether he actually believed he had.