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Proof 0-2
Sat, 10 Nov 2012 14:21:55 -0500, by Steve Losh
Tweaks.
Sat, 10 Nov 2012 13:45:43 -0500, by Steve Losh

less more | at revision 176: (0) -100 -30 -10 -2 +2 +10 +30 tip