fuzzy weak preferences is indicated, for which nondictatorial fuzzy aggregation rules satisfying the weak transitivity …

This introduces the symposium on judgment aggregation. The theory of judgment ag­gregation asks how several individuals …­duction is to show how ideas from the familiar theory of preference aggregation can be extended to this more general case. We …

. It addresses the question whether there exist non-dictatorial aggregation functions of convex risk measures satisfying … Arrow's impossibility theorem. For infinite electorates, the possibility of rational aggregation depends on an …-theoretic approach to aggregation theory inspired by Lauwers and Van Liedekerke (J Math Econ 24(3):217-237, 1995). Diverse applications …

]. The paper first proposes a unified framework for the analysis of the relation between various aggregation problems and the …-type preference aggregation ; Judgment aggregation ; Systematicity ; Model theory ; First-order predicate logic ; Filter ; Ultrafilter …