Apparently, this user prefers to keep an air of mystery about them.
7 Proof there is a 1-1 correspondence between an uncountable set and itself minus a countable part of it mar 6 '11
7 Is it always valid to cancel something like (x-2) in the numerator and denominator of a rational function? jul 28 '11
6 When should the antiderivative of a rational function be defined as a piecewise function? sep 5 '11
3 A subset of permutations on the set S such that the elements that are within T, a subset of S, are not exchanged with elements outside of T jan 22 '11
3 Proving a noninvertible function is onto? jan 24 '12