On the definable ideal generated by the plus cupping c.e. degrees

DOI10.1007/S00153-007-0046-2zbMath1117.03048OpenAlexW2130029672MaRDI QIDQ877264

Wei Wang, Ding, Decheng

Publication date: 19 April 2007

Published in: Archive for Mathematical Logic (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1007/s00153-007-0046-2

zbMATH Keywords

computably enumerable degreedefinable idealplus cupping degree

Mathematics Subject Classification ID

Recursively (computably) enumerable sets and degrees (03D25)

Related Items (2)

On definable filters in computably enumerable degrees ⋮ Modulo computably enumerable degrees by cupping partners

Cites Work

• Plus cupping degrees do not form an ideal
• An Algebraic Decomposition of the Recursively Enumerable Degrees and the Coincidence of Several Degree Classes with the Promptly Simple Degrees
• On the definable ideal generated by nonbounding c.e. degrees
• PARAMETER DEFINABILITY IN THE RECURSIVELY ENUMERABLE DEGREES
• A minimal pair joining to a plus cupping Turing degree
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