Fri, 25 Jul 1997 11:47:09 +0200 wenzelm improved rewrite_thm / rewrite_goals to handle conditional eqns;
(0) -3000 -1000 -300 -100 -30 -10 -1 +1 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip