Action Emulation Between Canonical Models

Abstract : In this paper we investigate Kripke models, used to model knowledge or belief in a static situation, and action models, used to model communicative actions that change this knowledge or belief. The appropriate notion for structural equivalence between modal structures such as Kripke models is bisimulation: Kripke models that are bisimilar are modally equivalent. We would like to find a structural relation that can play the same role for the action models that play a prominent role in information updating. Two action models are equivalent if they yield the same results when updating Kripke models. More precisely, two action models are equivalent if it holds for all Kripke models that the result of updating with one action model is bisimilar to the result of updating with the other action model. We propose a new notion of action emulation that characterizes the structural equivalence of the important class of canonical action models. Since every action model has an equivalent canonical action model, this gives a method to decide the equivalence of any pair of action models. We also give a partial result that holds for the class of all action models. Our results extend the work in \citeEijRuaSad12.
Type de document :
Article dans une revue
Journal of Philosophical Logic, Springer Verlag, 2013, 42 (6), pp.905 - 925
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Contributeur : Tijs Van Der Storm <>
Soumis le : jeudi 2 janvier 2014 - 17:06:40
Dernière modification le : mercredi 29 novembre 2017 - 15:08:08


  • HAL Id : hal-00923395, version 1



F. A. G. Sietsma, D. J. N. Eijck. Action Emulation Between Canonical Models. Journal of Philosophical Logic, Springer Verlag, 2013, 42 (6), pp.905 - 925. 〈hal-00923395〉



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