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» Logics with an existential modality
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TABLEAUX
2000
Springer
15 years 4 months ago
Modality and Databases
Two things are done in this paper. First, a modal logic in which one can quantify over both objects and concepts is presented; a semantics and a tableau system are given. It is a n...
Melvin Fitting
99
Voted
AAAI
1990
15 years 1 months ago
Conditional Logics of Normality as Modal Systems
Recently, conditional logics have been developed for application to problems in default reasoning. We present a uniform framework for the development and investigation of conditio...
Craig Boutilier
77
Voted
EUSFLAT
2009
120views Fuzzy Logic» more  EUSFLAT 2009»
14 years 10 months ago
Characterizing Fuzzy Modal Semantics by Fuzzy Multimodal Systems with Crisp Accessibility Relations
Félix Bou, Francesc Esteva, Lluis Godo, Ric...
79
Voted
STACS
2007
Springer
15 years 6 months ago
Rank-1 Modal Logics Are Coalgebraic
Coalgebras provide a unifying semantic framework for a wide variety of modal logics. It has previously been shown that the class of
Lutz Schröder, Dirk Pattinson
153
Voted
FTP
1998
Springer
15 years 4 months ago
Higher-Order Modal Logic - A Sketch
Abstract. First-order modal logic, in the usual formulations, is not sufficiently expressive, and as a consequence problems like Frege's morning
Melvin Fitting