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Erschienen in:
2014 | OriginalPaper | Buchkapitel
The Problem of Judgment Aggregation in the Framework of Boolean-Valued Models
verfasst von : Daniel Eckert, Frederik Herzberg
Erschienen in: Computational Logic in Multi-Agent Systems
Verlag: Springer International Publishing
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A framework for boolean-valued judgment aggregation is described. The simple (im)possibility results in this paper highlight the role of the set of truth values and its algebraic structure. In particular, it is shown that central properties of aggregation rules can be formulated as homomorphy or order-preservation conditions on the mapping between the power-set algebra over the set of individuals and the algebra of truth values. This is further evidence that the problems in aggregation theory are driven by information loss, which in our framework is given by a coarsening of the algebra of truth values.