Timeline for When is a Hausdorff space metrisable?
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| Nov 20, 2009 at 15:32 | comment | added | Greg Kuperberg | This Wikipedia page is an excellent answer to the question. Urysohn's theorem (second-countable, regular, Hausdorff is metrizable) and Smirnov's theorem (locally metrizable, Hausdorff, paracompact is metrizable) really are what people use all the time. | |
| Nov 20, 2009 at 15:23 | history | answered | user709 | CC BY-SA 2.5 |