Apparently, this user prefers to keep an air of mystery about them.
15 How many k-dimensional subspaces there are in n-dimentional vector space over $\mathbb F_p$? Oct 8 '11
6 Prove that for any infinite poset there is an infinite subset which is either linearly ordered or antichain. Jan 4 '12
5 Can someone please explain 3-CNF for me? Aug 8 '11
3 If a line segment is divided into 2 parts then one of the parts is equinumerous to the original segment. Jan 1 '12
2 Counting functions between two sets Nov 21 '11
2 Modus Ponens Proof Sep 25 '14