User:Tonypr

Awesome math solver from Puerto Rico, soon to be International Math Olympiad.

Proof :

Suppose that

$\begin{eqnarray*} a&=&b\\ a^2&=&ab\\ a^2-b^2&=&ab-b^2\\ (a+b)(a-b)&=&b(a-b)\\ a+b&=&b\\ b+b&=&b\\ 2b&=&b\\ 2&=&1 \end{eqnarray*}$ (Error compiling LaTeX. Unknown error_msg)