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LICS
1997
IEEE
14 years 3 months ago
First-Order Logic with Two Variables and Unary Temporal Logic
Kousha Etessami, Moshe Y. Vardi, Thomas Wilke
FUIN
2007
135views more  FUIN 2007»
13 years 11 months ago
On First-Order Fragments for Mazurkiewicz Traces
Mazurkiewicz traces form a model for concurrency. Temporal logic st-order logic are important tools in order to deal with the abstract behavior of such systems. Since typical prop...
Volker Diekert, Martin Horsch, Manfred Kufleitner
ICDT
2005
ACM
139views Database» more  ICDT 2005»
14 years 4 months ago
First Order Paths in Ordered Trees
We give two sufficient conditions on XPath like languages for having first order expressivity, meaning that every first order definable set of paths in an ordered node-labeled t...
Maarten Marx
CADE
2004
Springer
14 years 11 months ago
Uniform variable splitting
ended abstract motivates and presents techniques for identifying variable independence in free variable calculi for classical logic without equality. Two variables are called indep...
Roger Antonsen
SIGMOD
2005
ACM
114views Database» more  SIGMOD 2005»
14 years 11 months ago
Semantic characterizations of navigational XPath
We give semantic characterizations of the expressive power of navigational XPath (also called Core XPath) in terms of first order logic. XPath can be used to specify sets of nodes...
Maarten Marx, Maarten de Rijke