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TABLEAUX
2009
Springer
14 years 3 months ago
Modular Sequent Systems for Modal Logic
We see cut-free sequent systems for the basic normal modal logics formed by any combination the axioms d, t, b, 4, 5. These systems are modular in the sense that each axiom has a c...
Kai Brünnler, Lutz Straßburger
AUSAI
2007
Springer
14 years 2 months ago
Dialogue Games in Defeasible Logic
In this paper we show how to capture dialogue games in Defeasible Logic. We argue that Defeasible Logic is a natural candidate and general representation formalism to capture dialo...
Subhasis Thakur, Guido Governatori, Vineet Padmana...
ISAAC
2007
Springer
124views Algorithms» more  ISAAC 2007»
14 years 2 months ago
Approximating the Crossing Number of Toroidal Graphs
Abstract. CrossingNumber is one of the most challenging algorithmic problems in topological graph theory, with applications to graph drawing and VLSI layout. No polynomial time con...
Petr Hlinený, Gelasio Salazar
AMAI
2004
Springer
14 years 2 months ago
Unrestricted vs Restricted Cut in a Tableau Method for Boolean Circuits
This paper studies the relative proof complexity of variations of a tableau method for Boolean circuit satisfiability checking obtained by restricting the use of the cut rule in s...
Matti Järvisalo, Tommi A. Junttila, Ilkka Nie...
ICALP
2004
Springer
14 years 2 months ago
Towards an Algebraic Theory of Typed Mobile Processes
The impact of types on the algebraic theory of the π-calculus is studied. The type system has capability types. They allow one to distinguish between the ability to read from a c...
Yuxin Deng, Davide Sangiorgi