1- Is there a urysohn's space which is not hausdorff? 2- Is there a urysohn's space which is not regular? 3- Is there a non-urysohn's space which is regular?
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closed as too localized by Felipe Voloch, Ryan Budney, Neil Strickland, Andreas Thom, Didier Piau Jul 18 2011 at 19:42 |
