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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
ISSN: 01680072
Appears in Collections:Staff Publications

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