LTL is expressively complete for Mazurkiewicz traces

  • Authors:
  • Volker Diekert;Paul Gastin

  • Affiliations:
  • Institut für Informatik, Universität Stuttgart, Breitwiesenstr. 20-22, D-70565 Stuttgart, Germany;LIAFA, Université Paris 7, 2, Place Jussieu, F-75251 Paris Cedex 05, France

  • Venue:
  • Journal of Computer and System Sciences
  • Year:
  • 2002

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Abstract

A long standing open problem in the theory of (Mazurkiewicz) traces has been the question whether LTL (linear temporal logic) is expressively complete with respect to the first order theory. We solve this problem positively for finite and infinite traces and for the simplest temporal logic, which is based only on next and until modalities. Similar results were established previously, but they were all weaker, since they used additional past or future modalities. Another feature of our work is that our proof is direct and does not use any reduction to the word case.