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» A Decidable Fragment of Separation Logic
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IPL
2006
120views more  IPL 2006»
13 years 7 months ago
Propositional dynamic logic of context-free programs and fixpoint logic with chop
This paper compares Propositional Dynamic Logic of Non-Regular Programs and Fixpoint Logic with Chop. It identifies a fragment of the latter which is equiexpressive to the former....
Martin Lange, Rafal Somla
ICALP
2010
Springer
13 years 9 months ago
B and D Are Enough to Make the Halpern-Shoham Logic Undecidable
Abstract. The HalpernShoham logic is a modal logic of time intervals. Some eort has been put in last ten years to classify fragments of this beautiful logic with respect to decid...
Jerzy Marcinkowski, Jakub Michaliszyn, Emanuel Kie...
AIML
2008
13 years 9 months ago
Modal logic of time division
A logic LTD is defined, inspired by [37]. It is syntactically like basic modal logic with an additional unary operator but it has an interval-based semantics on structures with arb...
Tero Tulenheimo
LICS
2010
IEEE
13 years 5 months ago
On the Strictness of the First-Order Quantifier Structure Hierarchy over Finite Structures
One of the major interests of finite model theory is to separate the expressive power of different logics or fragments of logics. In this paper, we define a variant of EhrenfeuchtF...
Yuguo He
CORR
2010
Springer
139views Education» more  CORR 2010»
13 years 7 months ago
The Complexity of Satisfiability for Sub-Boolean Fragments of ALC
The standard reasoning problem, concept satisfiability, in the basic description logic ALC is PSPACE-complete, and it is EXPTIMEcomplete in the presence of unrestricted axioms. Sev...
Arne Meier, Thomas Schneider 0002