An ACCL which is not a CRCL

CÓ Dúnlaing - arXiv preprint arXiv:1411.5853, 2014 - arxiv.org
CÓ Dúnlaing
arXiv preprint arXiv:1411.5853, 2014arxiv.org
It is fairly easy to show that every regular set is an almost-confluent congruential language
(ACCL), and it is known that every regular set is a Church-Rosser congruential language
(CRCL). Whether there exists an ACCL, which is not a CRCL, seems to remain an open
question. In this note we present one such ACCL.
It is fairly easy to show that every regular set is an almost-confluent congruential language (ACCL), and it is known that every regular set is a Church-Rosser congruential language (CRCL). Whether there exists an ACCL, which is not a CRCL, seems to remain an open question. In this note we present one such ACCL.
arxiv.org