Fri, 21 Sep 2007 22:51:12 +0200 added has_abs (from envir.ML);
wenzelm [Fri, 21 Sep 2007 22:51:12 +0200] rev 24671
added has_abs (from envir.ML);
(0) -10000 -3000 -1000 -300 -100 -30 -10 -1 +1 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip