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May 31, 2016 at 2:25 vote accept math110
May 30, 2016 at 13:48 history edited YCor CC BY-SA 3.0
gave the statement of Schur's theorem
May 30, 2016 at 8:46 comment added math110 Thanks,maybe there exist elementary proof? because it's nice result,like the erdos methods?
May 30, 2016 at 7:24 history answered Friedrich Knop CC BY-SA 3.0