797 search results - page 69 / 160 » Logics with an existential modality |
CAISE
2007
Springer
15 years 4 months ago
2007
Springer
In a series of publications, we have proposed a foundational system of ontological categories which has been used to evaluate and improve the quality of conceptual modeling languag...
FUIN
2007
14 years 9 months ago
2007
We give formulations for modal deductive databases and present a modal query language called MDatalog. We define modal relational algebras and give the seminaive evaluation algor...
RULEML
2009
Springer
15 years 4 months ago
2009
Springer
We present the design and implementation of SPINdle – an open source Java based defeasible logic reasoner capable to perform efficient and scalable reasoning on defeasible logic...
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LFCS
2009
Springer
15 years 4 months ago
2009
Springer
Memory logics are a family of modal logics in which standard relational structures are augmented with data structures and additional operations to modify and query these structure...
LICS
2009
IEEE
15 years 4 months ago
2009
IEEE
We show how to reason about “step-indexed” logitions in an abstract way, avoiding the tedious, error-prone, and proof-obscuring step-index arithmetic that seems superficially...