Math Trek Math An Attack on Fermat Sophie Germain was the first to propose a realistic plan to prove Fermat's Last Theorem By Julie Rehmeyer February 21, 2008 at 4:41 pm - More than 2 years ago Share this:Share Share via email (Opens in new window) Email Click to share on Facebook (Opens in new window) Facebook Click to share on Reddit (Opens in new window) Reddit Click to share on X (Opens in new window) X Click to print (Opens in new window) Print This is part one of a two-part series. Part II: “A Mathematical Tragedy” is available at About Time. Sophie Germain was the first person to develop a realistic plan to prove Fermat’s Last Theorem.