@techreport{R-88-32, TITLE = {An Approach to Non-Monotonic Entailment}, AUTHOR = {Erik Sandewall}, YEAR = {1988}, NUMBER = {R-88-32}, INSTITUTION = ida, ADDRESS = idaaddr, ABSTRACT = {}, IDANR = {LiTH-IDA-R-88-32}, NOTE = {To appear in Methodologies for Intelligent Systems, vol. II, Proc. of ISMIS 1988 conference, Torino, Italy, 1988, Z.W. Ras and L. Saitta (eds), North Holland, 1988, pp. 391-397}