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ON THE NON-ENUMERABILITY OF L

Published online by Cambridge University Press:  01 December 2016

G. E. SACKS
G. E. SACKS*
Affiliation:
MATHEMATICS DEPARTMENT HARVARD UNIVERSITY CAMBRIDGE, MA 02138, USA E-mail: sacks@math.harvard.edu
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Abstract

Assume V ≠ L. Then L is not E-Recursively Enumerable in any member of L via a forcing argument inspired by Friedberg [1]. This approach leads to an extension of Levy-Shoenfield absoluteness.

Keywords

E-recursionabsoluteness
Type
Articles
Information
The Journal of Symbolic Logic , Volume 81 , Issue 4 , December 2016 , pp. 1396 - 1404
Copyright
Copyright © The Association for Symbolic Logic 2016 

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References

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