STOC
2012
ACM
12 years 4 months ago
2012
ACM
We give the first time-space tradeoff lower bounds for Resolution proofs that apply to superlinear space. In particular, we show that there are formulas of size N that have Reso...
PODC
2011
ACM
13 years 4 months ago
2011
ACM
This work studies decision problems from the perspective of nondeterministic distributed algorithms. For a yes-instance there must exist a proof that can be verified with a distri...
ECCC
2010
14 years 11 days ago
2010
We initiate the study of the proof complexity of propositional encoding of (weak cases of) concrete independence results. In particular we study the proof complexity of Paris-Harr...
JCSS
2002
14 years 1 months ago
2002
The exact complexity of the weak pigeonhole principle is an old and fundamental problem in proof complexity. Using a diagonalization argument, Paris, Wilkieand Woods 16] showed ho...
AML
2006
14 years 1 months ago
2006
The paper considers a commonly used axiomatization of the classical propositional logic and studies how different axiom schemata in this system contribute to proof complexity of th...
CIE
2008
Springer
14 years 3 months ago
2008
Springer
There are many ways to define complexity in logic. In finite model theory, it is the complexity of describing properties, whereas in proof complexity it is the complexity of provin...
CSL
2005
Springer
14 years 7 months ago
2005
Springer
We show that Csanky’s fast parallel algorithm for computing the characteristic polynomial of a matrix can be formalized in the logical theory LAP, and can be proved correct in LA...
STOC
2002
ACM
15 years 2 months ago
2002
ACM
: This paper gives two distinct proofs of an exponential separation between regular resolution and unrestricted resolution. The previous best known separation between these systems...