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Multiagent Systems

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Prof. Dr. Jürgen Dix · Department of Informatics, TUC <strong>Multiagent</strong> <strong>Systems</strong>, WS 06/07 488/731<br />

7. Modal Logic 3. Axioms for Modal Logics<br />

Theorem 7.7 (Soundness/completeness of System K)<br />

System K is sound and complete with respect to<br />

arbitrary Kripke models.<br />

If we allow n modalities, the theorem as well as<br />

the definitions extend in an obvious way. The<br />

calculus is then called System K n to account for<br />

the n modalities.

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