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ECCC
2007
99views more  ECCC 2007»
14 years 9 months ago
An Exponential Time/Space Speedup For Resolution
Satisfiability algorithms have become one of the most practical and successful approaches for solving a variety of real-world problems, including hardware verification, experime...
Philipp Hertel, Toniann Pitassi
ENGL
2007
123views more  ENGL 2007»
14 years 9 months ago
Characterization by Regulated Grammars of Calculations in the Gentzen System G
— The aim of the present work is to present a characterization of the Gentzen System G by means of a regulated grammar, according to the Formal Languages Theory. Given a proposit...
Ruben Monjaraz Hernandez-Imbert, Jose de Jesus Lav...
AIML
2004
14 years 10 months ago
A Systematic Proof Theory for Several Modal Logics
The family of normal propositional modal logic systems are given a highly systematic organisation by their model theory. This model theory is generally given using Kripkean frame s...
Charles Stewart, Phiniki Stouppa
COCO
2003
Springer
135views Algorithms» more  COCO 2003»
15 years 2 months ago
Disjoint NP-Pairs
We study the question of whether the class DisjNP of disjoint pairs (A, B) of NP-sets contains a complete pair. The question relates to the question of whether optimal proof system...
Christian Glaßer, Alan L. Selman, Samik Seng...
STOC
2010
ACM
200views Algorithms» more  STOC 2010»
15 years 6 months ago
Hardness Amplification in Proof Complexity
We present a generic method for converting any family of unsatisfiable CNF formulas that require large resolution rank into CNF formulas whose refutation requires large rank for p...
Paul Beame, Trinh Huynh and Toniann Pitassi