Apparently, this user prefers to keep an air of mystery about them.
11 A quick question about the additive identity of a ring. nov 20 '13
3 Infiniteness of non-twin primes. jul 1
2 Relative homology of disk and any of its subspace is isomorphic to reduced homology of the subspace? jul 12
2 Why is every derivation a vector? jun 26