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2010
ACM
200views Algorithms» more  STOC 2010»
14 years 4 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
ERSHOV
2009
Springer
14 years 1 months ago
A Complete Invariant Generation Approach for P-solvable Loops
Abstract. We present an algorithm for generating all polynomial invariants of Psolvable loops with assignments and nested conditionals. We prove termination of our algorithm. The p...
Laura Kovács
ERSHOV
2001
Springer
13 years 12 months ago
Resolution and Binary Decision Diagrams Cannot Simulate Each Other Polynomially
There are many different ways of proving formulas in proposition logic. Many of these can easily be characterized as forms of resolution (e.g. [12] and [9]). Others use so-called...
Jan Friso Groote, Hans Zantema
TCS
2008
13 years 7 months ago
Making the use of maximal ideals constructive
The purpose of this paper is to decipher constructively a lemma of Suslin which played a central role in his second solution of Serre's problem on projective modules over pol...
Ihsen Yengui
LATIN
2004
Springer
14 years 22 days ago
A Proof System and a Decision Procedure for Equality Logic
Equality logic with or without uninterpreted functions is used for proving the equivalence or refinement between systems (hardware verification, compiler’s translation, etc). C...
Olga Tveretina, Hans Zantema