Mon, 22 Jun 1998 17:12:27 +0200 wenzelm isatool fixgoal;
Mon, 22 Jun 1998 15:53:24 +0200 paulson Changed format of Bob's certificate from Nb,K,A to A,B,K,Nb.
Mon, 22 Jun 1998 15:50:59 +0200 paulson comments and minor tidying
Mon, 22 Jun 1998 15:49:29 +0200 paulson simplified and tidied the proofs
(0) -3000 -1000 -300 -100 -30 -10 -4 +4 +10 +30 +100 +300 +1000 +3000 +10000 +30000 tip