References
Donald Nute
Possible worlds without possibilia
1998
in: Thought, language, and ontology, Dordrecht : Springer
Defeasible reasoning: a philosophical analysis in prolog
1988
in: Aspects of artificial intelligence, Dordrecht : Springer
1998
in: Thought, language, and ontology, Dordrecht : Springer
1988
in: Aspects of artificial intelligence, Dordrecht : Springer