Resolution is Cut-Free

  • Authors:
  • Olivier Hermant

  • Affiliations:
  • Dept. Sistemas Informáticos y Computación, Univ. Complutense de Madrid, Madrid, Spain 28040 and ISEP, Paris, France 75006

  • Venue:
  • Journal of Automated Reasoning
  • Year:
  • 2010

Quantified Score

Hi-index 0.00

Visualization

Abstract

In this article, we show that the extension of the resolution proof system to deduction modulo is equivalent to the cut-free fragment of the sequent calculus modulo. The result is obtained through a syntactic translation, without using any cut-elimination procedure. Additionally, we show Skolem theorem and inversion/focusing results. Thanks to the expressiveness of deduction modulo, all these results also apply to the cases of higher-order resolution, Peano's arithmetic and Gentzen's LK.