Unraveling Π 1 1 sets, revisited |
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| Authors: | Itay Neeman |
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| Affiliation: | (1) Department of Mathematics, University of California Los Angeles, 90095-1555 Los Angeles, CA, USA |
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| Abstract: | We present a method of unraveling Π 1 1 sets which greatly simplifies the construction in Neeman [6]. Apart from adding elegance, this method is also useful for proofs of determinacy involving long games; see Neeman [5]. This material is based upon work supported by the National Science Foundation under Grant No. DMS-0094174. |
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