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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 06/07 306/731<br />

4. Decision Making (2) 2. Tactical Voting<br />

What do we mean by each outcome is in principle<br />

votable? This condition is also called citizen sovereignty:<br />

Definition 4.18 (Citizen Sovereignty)<br />

A social correspondence<br />

W ∗ : Ord par → 2 O ; 〈≺ 1 , . . . , ≺ |A| 〉 ↦→ v ′<br />

satisfies citizen sovereignty (or is onto) if for any v ′ ⊂ O<br />

there is a 〈≺ 1 , . . . , ≺ |A| 〉 ∈ Ord par such that<br />

W ∗ (〈≺ 1 , . . . , ≺ |A| 〉) = v ′

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