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|Title:||On the definable ideal generated by nonbounding c.e. degrees||Authors:||Yu, L.
|Issue Date:||Mar-2005||Citation:||Yu, L., Yang, Y. (2005-03). On the definable ideal generated by nonbounding c.e. degrees. Journal of Symbolic Logic 70 (1) : 252-270. ScholarBank@NUS Repository. https://doi.org/10.2178/jsl/1107298519||Abstract:||Let [NB]1 denote the ideal generated by nonbounding c.e. degrees and NCup the ideal of noncuppable c.e. degrees. We show that both [NB] 1 ∩ NCup and the ideal generated by nonbounding and noncuppable degrees are new, in the sense that they are different from M, [NB]1 and NCup - the only three known definable ideals so far. © 2005, Association for Symbolic Logic.||Source Title:||Journal of Symbolic Logic||URI:||http://scholarbank.nus.edu.sg/handle/10635/103786||ISSN:||00224812||DOI:||10.2178/jsl/1107298519|
|Appears in Collections:||Staff Publications|
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