Apparently, this user prefers to keep an air of mystery about them.
4 For every real number $a$ there exists a sequence $r_n$ of rational numbers such that $r_n$ approaches $a$. Oct 8 '12
3 HW Probability Problem Mar 18 '13
2 Deriving the mean of the Geometric Distribution Feb 22 '13
0 Ways of choosing an event Mar 19 '13