Return to Answer

replaced http://mathoverflow.net/ with https://mathoverflow.net/

Source Link

edited Apr 13, 2017 at 12:58

Zagier's one-sentence proof of Fermat's two square theorem (discussed previously on MathOverflow here here) seems to qualify.

Post Made Community Wiki

Source Link

created Dec 21, 2010 at 6:49

Zagier's one-sentence proof of Fermat's two square theorem (discussed previously on MathOverflow here) seems to qualify.