Thu, 18 Jan 2001 20:38:58 +0100 wenzelm show/thus: Toplevel.proof';
Thu, 18 Jan 2001 20:38:32 +0100 wenzelm infix \\\\;
Thu, 18 Jan 2001 20:37:38 +0100 wenzelm added exists_stamp;
(0) -10000 -3000 -1000 -300 -100 -30 -10 -3 +3 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip