Thu, 10 Sep 1998 17:17:22 +0200 paulson Adds order_refl, order_less_irrefl as simps, not as Iffs, to avoid PROOF FAILED
Thu, 10 Sep 1998 17:15:48 +0200 paulson in_set_butlast_appendI supersedes in_set_butlast_appendI1,2
(0) -3000 -1000 -300 -100 -30 -10 -2 +2 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip