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PROOF COMPLEXITY

an encyclopedia of propositional proof complexity. Propositional proof complexity (or, simply, proof complexity) is one of the research areas tightly connecting mathematical logic and computation...

Pure mathematics

  • 2019
  • B
Result

Proof complexity

This note exposes few basic points of proof complexity in a way accessible to any mathematician...

BA - Obecná matematika

  • 2005
  • D
Result

Dehn function and length of proofs.

We link the Dehn function of finitely presented groups to the length-of-proofsfunction in propositional proof complexity.

BA - Obecná matematika

  • 2003
  • Jx
Result

On the proof complexity of the Nisan-Wigderson generator

We prove the consistency of a statement generalizing Razborov''s conjecture from proof complexity with the true universal theory in the language of Cook''s theory PV....

BA - Obecná matematika

  • 2011
  • Jx
  • Link
Result

Diagonalization in proof complexity

We prove that (i) either there is a language in E requiring exponential circuit complexity, or (ii) the class NP is not closed under the complementation, or (iii) there is no p-optimal propositional proof system....

BA - Obecná matematika

  • 2004
  • Jx
Result

Twelve Problems in Proof Complexity

We illustrate the state of art in proof complexity using twelve problems...

BA - Obecná matematika

  • 2008
  • D
Result

Why are proof complexity lower bounds hard?

to showing lower bounds on propositional proof complexity. We establish the following unconditional result: Propositional proof systems cannot efficiently show that truth tables-Rudich 'natural proofs' barrier hol...

Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)

  • 2019
  • D
  • Link
Result

On the proof complexity of the Nisan-Wigderson generator based on a hard NP boolean AND coNP function

We prove the consistency of a statement generalizing Razborov's conjecture from proof complexity with the true universal theory in the language of Cook's theory PV....

BA - Obecná matematika

  • 2011
  • Jx
  • Link
Result

Proof Complexity of the Cut-free Calculus of Structures

We investigate the proof complexity of analytic subsystems of the deep inference proof system SKSg (the calculus of structures). Exploiting the fact the same complexity as the monotone Gentzen calculus MLK. In part...

BA - Obecná matematika

  • 2009
  • Jx
Result

String rewriting and proof complexity: an interpretation of resolution

We interpret the well-known propositional proof system Resolution using string rewriting systems Sigma(n)* and Sigma(n) corresponding to tree-like proofs(a) and sequence-like proofs, respectively. We give a representation o...

BA - Obecná matematika

  • 2009
  • Jx
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