Total Public Announcements

  • Authors:
  • David Steiner;Thomas Studer

  • Affiliations:
  • Universität Bern, Institut für Informatik und angewandte Mathematik, Neubrückstrasse 10, CH-3012 Bern,;Universität Bern, Institut für Informatik und angewandte Mathematik, Neubrückstrasse 10, CH-3012 Bern,

  • Venue:
  • LFCS '07 Proceedings of the international symposium on Logical Foundations of Computer Science
  • Year:
  • 2007

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Abstract

We present a dynamic epistemic logic for knowledge change of rational agents. Existing approaches only deal with partial public announcements, that means an announcement may lead to an inconsistent state. We introduce an extension of the multi-modal logic S5nfeaturing total public announcements where an update cannot result in an inconsistency. We also study total public announcements in the context of common knowledge and relativized common knowledge.