Computing extensions of default logic - Preliminary report

Grigoris Antoniou, Elmar Langetepe, Volker Sperschneider

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


We present an operational process model for default logic that allows calculation of the extensions of a theory, and give a prototypical Prolog implementation. Then we present an improved approach for realizing the process model in logic programming making direct use of Prolog’s deductive power. In particular, we give a translation of finite default theories T into logic programs P(T) such that P(T) computes exactly the extensions of T.

Original languageEnglish
Title of host publicationLogic Programming and Automated Reasoning - 4th International Conference, LPAR 1993, Proceedings
EditorsAndrei Voronkov
PublisherSpringer Verlag
Number of pages9
ISBN (Print)9783540569442
Publication statusPublished - 1993
Externally publishedYes
Event4th International Conference on Logic Programming and Automated Reasoning - St. Petersburg, Russian Federation
Duration: 13 Jul 199320 Jul 1993
Conference number: 4

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume698 LNAI
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349


Conference4th International Conference on Logic Programming and Automated Reasoning
Abbreviated titleLPAR 1993
Country/TerritoryRussian Federation
CitySt. Petersburg
Internet address


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