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May 23, 2013 at 20:03 vote accept user15512
Jun 1, 2011 at 6:07 answer added Sándor Kovács timeline score: 3
Jun 1, 2011 at 0:57 comment added mdeland No, X may have no rational curves on it - for example it could be a smooth elliptic curve.
Jun 1, 2011 at 0:45 history asked user15512 CC BY-SA 3.0