A Normal Form for Church-Rosser Language Systems

  • Authors:
  • Jens R. Woinowski

  • Affiliations:
  • -

  • Venue:
  • RTA '01 Proceedings of the 12th International Conference on Rewriting Techniques and Applications
  • Year:
  • 2001

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Abstract

In this paper the context-splittable normal form for rewritings systems defining Church-Rosser languages is introduced. Context-splittable rewriting rules look like rules of context-sensitive grammars with swapped sides. To be more precise, they have the form uvw → uxw with u, v, w being words, v being nonempty and x being a single letter or the empty word. It is proved that this normal form can be achieved for each Church-Rosser language and that the construction is effective.