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» Logical Queries over Views: Decidability and Expressiveness
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JAR
2006
236views more  JAR 2006»
14 years 10 months ago
Deciding Boolean Algebra with Presburger Arithmetic
We describe an algorithm for deciding the first-order multisorted theory BAPA, which combines 1) Boolean algebras of sets of uninterpreted elements (BA) and 2) Presburger arithmeti...
Viktor Kuncak, Huu Hai Nguyen, Martin C. Rinard
CSL
2004
Springer
15 years 3 months ago
Game-Based Notions of Locality Over Finite Models
Locality notions in logic say that the truth value of a formula can be determined locally, by looking at the isomorphism type of a small neighborhood of its free variables. Such n...
Marcelo Arenas, Pablo Barceló, Leonid Libki...
CAV
1999
Springer
119views Hardware» more  CAV 1999»
15 years 2 months ago
A Theory of Restrictions for Logics and Automata
BDDs and their algorithms implement a decision procedure for Quanti ed Propositional Logic. BDDs are a kind of acyclic automata. Unrestricted automata (recognizing unbounded string...
Nils Klarlund
CALCO
2005
Springer
98views Mathematics» more  CALCO 2005»
15 years 3 months ago
The Least Fibred Lifting and the Expressivity of Coalgebraic Modal Logic
Every endofunctor B on the category Set can be lifted to a fibred functor on the category (fibred over Set) of equivalence relations and relation-preserving functions. In this pa...
Bartek Klin
ECOI
2007
101views more  ECOI 2007»
14 years 10 months ago
Reasoning about taxonomies in first-order logic
Experts often disagree about the organization of biological taxa. The shifting definitions of taxonomic names complicate otherwise simple queries concerning these taxa. For examp...
David Thau, Bertram Ludäscher