On Definability in Dependence Logic |
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| Authors: | Juha Kontinen Jouko Väänänen |
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| Affiliation: | (1) Department of Mathematics and Statistics, University of Helsinki, P.O. Box 68, 00014 University of Helsinki, Finland;(2) ILLC, University of Amsterdam, Amsterdam, The Netherlands;(3) Department of Mathematics and Statistics, University of Helsinki, Helsinki, Finland |
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| Abstract: | We study the expressive power of open formulas of dependence logic introduced in Väänänen [Dependence logic (Vol. 70 of London Mathematical Society Student Texts), 2007]. In particular, we answer a question raised by Wilfrid Hodges: how to characterize the sets of teams definable by means of identity only in dependence logic, or equivalently in independence friendly logic. |
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| Keywords: | Dependence logic Independence friendly logic Team |
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