Different approaches to proof systems

  • Authors:
  • Olaf Beyersdorff;Sebastian Müller

  • Affiliations:
  • Institute of Computer Science, Humboldt University Berlin, Germany;Faculty of Mathematics and Physics, Charles University Prague, Czech Republic

  • Venue:
  • TAMC'10 Proceedings of the 7th annual conference on Theory and Applications of Models of Computation
  • Year:
  • 2010

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Abstract

The classical approach to proof complexity perceives proof systems as deterministic, uniform, surjective, polynomial-time computable functions that map strings to (propositional) tautologies This approach has been intensively studied since the late 70's and a lot of progress has been made During the last years research was started investigating alternative notions of proof systems There are interesting results stemming from dropping the uniformity requirement, allowing oracle access, using quantum computations, or employing probabilism These lead to different notions of proof systems for which we survey recent results in this paper.