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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 06/07 540/731<br />

8. Action/Time as Modalities 2. Action: Dynamic Logic<br />

Definition 8.8 (Dynamic Logic: Models)<br />

A model of propositional dynamic logic is given<br />

by a labelled transition system and a valuation of<br />

propositions.<br />

Definition 8.9 (Composite labels)<br />

We assume that the set of labels forms a<br />

Kleene algebra 〈L, ;, ∪, ∗〉. We also assume that<br />

the set of labels contains constructs of the form<br />

“φ?”, whenever φ is a formula not involving any<br />

modalities.

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