English

The size of a formula as a measure of complexity

Logic 2012-08-24 v1 Logic in Computer Science

Abstract

We introduce a refinement of the usual Ehrenfeucht-Fra\"{\i}ss\'e game. The new game will help us make finer distinctions than the traditional one. In particular, it can be used to measure the size formulas needed for expressing a given property. We will give two versions of the game: the first version characterizes the size of formulas in propositional logic, and the second version works for first-order predicate logic.

Keywords

Cite

@article{arxiv.1208.4803,
  title  = {The size of a formula as a measure of complexity},
  author = {Lauri Hella and Jouko Väänänen},
  journal= {arXiv preprint arXiv:1208.4803},
  year   = {2012}
}

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25 pages