Apparently, this user prefers to keep an air of mystery about them.
93 Proofs that every mathematician should know? aug 5 '12
29 Is it true that the Fibonacci sequence has the remainders when divided by 3 repeating? jan 12 '15
22 How to tell $i$ from $-i$? aug 1 '12
15 How fundamental is the fundamental theorem of algebra? sep 16 '10