A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2020; you can also visit the original URL.
The file type is
Journal of Software
The raise of extension set provides reasonable logical foundation for the automatic solving of contradiction problem. This paper views contradiction as an unsatiable concept, an unrealizable action or an item that can't meet the satisfaction of a certain concept, analyzes a representation language in face of contradiction problem, which is, a new extension description logic--ALC D-ES . Syntax definition, semantic explanation and reasoning algorithm Tableau D-ES are given in details, which laydoi:10.4304/jsw.9.7.1914-1921 fatcat:4delwojtyfgirnionjs6k3e2eq