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Empty intervals in the enumeration degrees

Kent, Thomas F., Lewis-Pye, Andrew and Sorbi, Andrea (2012) Empty intervals in the enumeration degrees. Annals of Pure and Applied Logic, 163 (5). pp. 567-574. ISSN 0168-0072

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Identification Number: 10.1016/j.apal.2011.06.012


There is a π20 enumeration degree which is a strong minimal cover. This is the best result possible since the Σ20 enumeration degrees are dense. A priority proof using doubling requests is used to construct the required sets.

Item Type: Article
Official URL:
Additional Information: © 2011 Elsevier B.V.
Divisions: Mathematics
Subjects: Q Science > QA Mathematics
Date Deposited: 06 Aug 2013 11:29
Last Modified: 28 May 2024 06:36

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