Apparently, this user prefers to keep an air of mystery about them.
10 Axiom of choice for sets of finite sets apr 10
8 Is there in ZFC a topological space which is normal, ccc, countably compact, first countable and non-compact? mar 13 '13
6 How to call a point in a space having the property that there is essentially one $\omega$-sequence converging to it? aug 24 '13
6 Closed totally disconnected subspaces apr 12 '13
5 “Abnormal” manifold nov 21 '13