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|Title:||A rank one cohesive set||Authors:||Downey, R.G.
|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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