2.04/0.71 NO 2.04/0.71 2.04/0.71 2.04/0.71 The system was reversed. 2.04/0.71 2.04/0.71 Remains to prove termination of the 3-rule system 2.04/0.71 { a -> , 2.04/0.71 b a -> a c b , 2.04/0.71 c c b -> a b c } 2.04/0.71 2.04/0.71 2.04/0.71 Loop of length 29 starting with a string of length 11 using right expansion 2.04/0.71 and the encoding {a=a, b=b, c=c}: 2.04/0.71 2.04/0.71 .ba.acbcbcbcb 2.04/0.71 rule ba -> acb at position 0 2.04/0.71 .acb.acbcbcbcb 2.04/0.71 rule ba -> acb at position 2 2.04/0.71 .acacb.cbcbcbcb 2.04/0.71 rule a -> at position 2 2.04/0.71 .accb.cbcbcbcb 2.04/0.71 rule ccb -> abc at position 1 2.04/0.71 .aabc.cbcbcbcb 2.04/0.71 rule ccb -> abc at position 3 2.04/0.71 .aababc.cbcbcb 2.04/0.71 rule ccb -> abc at position 5 2.04/0.71 .aabababc.cbcb 2.04/0.71 rule ba -> acb at position 4 2.04/0.71 .aabaacbbc.cbcb 2.04/0.71 rule ccb -> abc at position 8 2.04/0.71 .aabaacbbabc.cb 2.04/0.71 rule ba -> acb at position 7 2.04/0.71 .aabaacbacbbc.cb 2.04/0.71 rule ba -> acb at position 6 2.04/0.71 .aabaacacbcbbc.cb 2.04/0.71 rule a -> at position 6 2.04/0.71 .aabaaccbcbbc.cb 2.04/0.71 rule ccb -> abc at position 11 2.04/0.71 .aabaaccbcbbabc. 2.04/0.71 rule ba -> acb at position 10 2.04/0.71 .aabaaccbcbacbbc. 2.04/0.71 rule ba -> acb at position 9 2.04/0.71 .aabaaccbcacbcbbc. 2.04/0.71 rule a -> at position 9 2.04/0.71 .aabaaccbccbcbbc. 2.04/0.71 rule ccb -> abc at position 8 2.04/0.71 .aabaaccbabccbbc. 2.04/0.71 rule ba -> acb at position 7 2.04/0.71 .aabaaccacbbccbbc. 2.04/0.71 rule a -> at position 7 2.04/0.71 .aabaacccbbccbbc. 2.04/0.71 rule ccb -> abc at position 10 2.04/0.71 .aabaacccbbabcbc. 2.04/0.71 rule ba -> acb at position 9 2.04/0.71 .aabaacccbacbbcbc. 2.04/0.71 rule ba -> acb at position 8 2.04/0.71 .aabaacccacbcbbcbc. 2.04/0.71 rule a -> at position 8 2.04/0.71 .aabaaccccbcbbcbc. 2.04/0.71 rule ccb -> abc at position 7 2.04/0.71 .aabaaccabccbbcbc. 2.04/0.71 rule a -> at position 7 2.04/0.71 .aabaaccbccbbcbc. 2.04/0.71 rule ccb -> abc at position 8 2.04/0.71 .aabaaccbabcbcbc. 2.04/0.71 rule ba -> acb at position 7 2.04/0.71 .aabaaccacbbcbcbc. 2.04/0.71 rule a -> at position 7 2.04/0.71 .aabaacccbbcbcbc. 2.04/0.71 rule ccb -> abc at position 6 2.04/0.71 .aabaacabcbcbcbc. 2.04/0.71 rule a -> at position 6 2.04/0.71 .aabaacbcbcbcbc. 2.04/0.75 EOF