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arXiv:1104.1681 [math.LO]AbstractReferencesReviewsResources

Polish group actions and effectivity

Barbara Majcher-Iwanow

Published 2011-04-09Version 1

We extend the result of Nadel describing the relationship between approximations of canonical Scott sentences and admissible sets to the general case of orbit equivalence relations induced on an arbitrary Polish space by a Polish group action.

Comments: 10 pages
Categories: math.LO
Subjects: 03E15, 03C70
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