Graph
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Proof 29-31.Mon, 19 Nov 2012 19:01:14 -0500, by Steve Losh
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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
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Proof 12-16Sat, 10 Nov 2012 17:36:05 -0500, by Steve Losh
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Proof 7-11Sat, 10 Nov 2012 17:09:56 -0500, by Steve Losh
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Proof 3-6Sat, 10 Nov 2012 14:50:42 -0500, by Steve Losh
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Proof 0-2Sat, 10 Nov 2012 14:21:55 -0500, by Steve Losh
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Tweaks.Sat, 10 Nov 2012 13:45:43 -0500, by Steve Losh