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Apr 3, 2014 at 13:32 vote accept Inquisitive
Mar 31, 2014 at 23:16 comment added Yemon Choi I suspect the answer to Question 2 is negative, but I don't yet have a counterexample
Mar 31, 2014 at 23:14 comment added Yemon Choi And as @JohannesHahn points out below, Question 1 is trivial.
Mar 31, 2014 at 23:14 comment added Yemon Choi Question 3 is far too broad. How good are you at describing/characterizing all the closed subsets of ${\bf R}$, for instance?
Mar 31, 2014 at 16:32 review Close votes
Apr 19, 2014 at 0:03
Mar 31, 2014 at 15:30 answer added Johannes Hahn timeline score: 5
Mar 31, 2014 at 14:09 history asked Inquisitive CC BY-SA 3.0