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» On decidability of monadic logic of order over the naturals ...
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ENTCS
2006
117views more  ENTCS 2006»
13 years 5 months ago
Monadic Second-Order Logic and Transitive Closure Logics over Trees
Model theoretic syntax is concerned with studying the descriptive complexity of grammar formalisms for natural languages by defining their derivation trees in suitable logical for...
Hans-Jörg Tiede, Stephan Kepser
PODS
2004
ACM
131views Database» more  PODS 2004»
14 years 5 months ago
On the Decidability of Containment of Recursive Datalog Queries - Preliminary report
The problem of deciding query containment has important applications in classical query optimization and heterogeneous database systems. Query containment is undecidable for unres...
Piero A. Bonatti
LOGCOM
2002
72views more  LOGCOM 2002»
13 years 5 months ago
Definability in Rationals with Real Order in the Background
The paper deals with logically definable families of sets (or point-sets) of rational numbers. In particular we are interested whether the families definable over the real line wi...
Yuri Gurevich, Alexander Moshe Rabinovich
CORR
2007
Springer
162views Education» more  CORR 2007»
13 years 5 months ago
Order-Invariant MSO is Stronger than Counting MSO in the Finite
We compare the expressiveness of two extensions of monadic second-order logic (MSO) over the class of finite structures. The first, counting monadic second-order logic (CMSO), ex...
Tobias Ganzow, Sasha Rubin
CSL
2010
Springer
13 years 6 months ago
New Algorithm for Weak Monadic Second-Order Logic on Inductive Structures
We present a new algorithm for model-checking weak monadic second-order logic on inductive structures, a class of structures of bounded clique width. Our algorithm directly manipul...
Tobias Ganzow, Lukasz Kaiser