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https://scholarbank.nus.edu.sg/handle/10635/102742
| Title: | A rank one cohesive set | Authors: | Downey, R.G. Yue, Y. |
Issue Date: | 15-Jul-1994 | Citation: | Downey, R.G.,Yue, Y. (1994-07-15). A rank one cohesive set. Annals of Pure and Applied Logic 68 (2) : 161-171. ScholarBank@NUS Repository. | Abstract: | In this paper, we prove that there is a Π0 1 class in 2ω with a unique nonrecursive member, with that member a cohesive set. This solves an open question from Cenzer (1993). The proof uses the Δ0 3 method in the context of the construction of a Π0 1 class. © 1994. | Source Title: | Annals of Pure and Applied Logic | URI: | http://scholarbank.nus.edu.sg/handle/10635/102742 | ISSN: | 01680072 |
| Appears in Collections: | Staff Publications |
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