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LICS
2008
IEEE
15 years 3 months ago
Caterpillar Duality for Constraint Satisfaction Problems
The study of constraint satisfaction problems definable in various fragments of Datalog has recently gained considerable importance. We consider constraint satisfaction problems ...
Catarina Carvalho, Víctor Dalmau, Andrei A....
LICS
2008
IEEE
15 years 3 months ago
From Axioms to Analytic Rules in Nonclassical Logics
We introduce a systematic procedure to transform large classes of (Hilbert) axioms into equivalent inference rules in sequent and hypersequent calculi. This allows for the automat...
Agata Ciabattoni, Nikolaos Galatos, Kazushige Teru...
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LICS
2008
IEEE
15 years 3 months ago
The Quest for a Logic Capturing PTIME
The question of whether there is a logic that captures polynomial time is the central open problem in descriptive complexity theory. In my talk, I will review the question and the...
Martin Grohe
LICS
2008
IEEE
15 years 3 months ago
Hiding Local State in Direct Style: A Higher-Order Anti-Frame Rule
Separation logic involves two dual forms of modularity: local reasoning makes part of the store invisible within a static scope, whereas hiding local state makes part of the store...
François Pottier
LICS
2008
IEEE
15 years 3 months ago
An Algebraic Process Calculus
We present an extension of the πI-calculus with formal sums of terms. The study of the properties of this sum reveals that its neutral element can be used to make assumptions abo...
Emmanuel Beffara