Tableau Calculi for KLM Logics: extended version

نویسندگان

  • Laura Giordano
  • Valentina Gliozzi
  • Nicola Olivetti
  • Gian Luca Pozzato
چکیده

We present tableau calculi for some logics of nonmonotonic reasoning, as defined by Kraus, Lehmann and Magidor. We give a tableau proof procedure for all KLM logics, namely preferential, loop-cumulative, cumulative and rational logics. Our calculi are obtained by introducing suitable modalities to interpret conditional assertions. We provide a decision procedure for the logics considered, and we study their complexity.

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تاریخ انتشار 2007