There is the two sentence counterexample to Euler's conjecture. http://www.openculture.com/2015/04/shortest-known-paper-in-a-serious-math-journal.html http://w

There is the two sentence counterexample to Euler's conjecture. http://www.openculture.com/2015/04/shortest-known-paper-in-a-serious-math-journal.html http://www.openculture.com/2015/04/shortest-known-paper-in-a...