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Copyright © Cambridge University Press 1993 1993 Cambridge University Press
Cite this article
| Besnard P, 1989, An Introduction to Default Logic, Springer-Verlag. |
| Lukaszewicz W, 1990, Non-monotonic Reasoning, Ellis Horwood. |
| Przymusinski T, 1991, “Three-valued nonmonotonic formalisms and semantics of logic programs” Artificial intelligence49309–343. |