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» On the Logic Underlying Common Sense
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AAAI
1990
14 years 1 days ago
The Representation of Defaults in Cyc
This paper provides an account of the representation of defaults in Cyc and their semantics in terms of first order logic with reification. Default reasoning is a complex thing, a...
Ramanathan V. Guha
IANDC
2007
66views more  IANDC 2007»
13 years 10 months ago
Quantitative temporal logics over the reals: PSpace and below
In many cases, the addition of metric operators to qualitative temporal logics (TLs) increases the complexity of satisfiability by at least one exponential: while common qualitat...
Carsten Lutz, Dirk Walther, Frank Wolter
LOGCOM
2008
94views more  LOGCOM 2008»
13 years 10 months ago
Preservation of Interpolation Features by Fibring
Fibring is a metalogical constructor that permits to combine different logics by operating on their deductive systems under certain natural restrictions, as for example that the t...
Walter Alexandre Carnielli, João Rasga, Cri...
ENTCS
2007
109views more  ENTCS 2007»
13 years 10 months ago
Hybrid Logics and Ontology Languages
Description Logics (DLs) are a family of logic based knowledge representation formalisms. Although they have a range of applications, they are perhaps best known as the basis for ...
Ian Horrocks, Birte Glimm, Ulrike Sattler
JAPLL
2011
108views more  JAPLL 2011»
13 years 5 months ago
A deontic logic framework allowing for factual detachment
Due to the fact that a large number of our ethical and behavioural norms have a conditional form, it is of great importance that deontic logics give an account of deontic commitme...
Christian Straßer