Tue, 05 Jul 2011 13:28:02 -0600 fixing proof of 7.1.1 (product thm)
Kevin Walker <kevin@canyon23.net> [Tue, 05 Jul 2011 13:28:02 -0600] rev 848
fixing proof of 7.1.1 (product thm)
(0) -300 -100 -30 -10 -1 +1 +10 +30 +100 tip