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
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 |
|---|---|
| Departments | Mathematics |
| DOI | 10.1016/j.apal.2011.06.012 |
| Date Deposited | 06 Aug 2013 11:29 |
| URI | https://researchonline.lse.ac.uk/id/eprint/51441 |