Graph
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Proof 24-28.Mon, 19 Nov 2012 18:40:21 -0500, by Steve Losh
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Proof 21-23.Sat, 17 Nov 2012 16:48:55 -0500, by Steve Losh
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Proof 19-20.Fri, 16 Nov 2012 20:17:06 -0500, by Steve Losh
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Proof 17-18.Thu, 15 Nov 2012 22:21:05 -0500, by Steve Losh