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Bounding non-GL2 and R.E.A.

Published online by Cambridge University Press:  12 March 2014

Klaus Ambos-Spies ,
Decheng Ding ,
Wei Wang  and
Liang Yu
Klaus Ambos-Spies
Affiliation:
Institut für Informatik, University of Heidelberg, Im Neuenheimer Feld 294, 69120 Heidelberg, Germany, E-mail: ambos@math.uni-heidelberg.de
Decheng Ding
Affiliation:
Department of Mathematics, Nanjing University, 22 Hankou Road, Nanjing 210093, P.R., China, E-mail: dcding@nju.edu.cn
Wei Wang*
Affiliation:
Department of Mathematics, Nanjing University, 22 Hankou Road, Nanjing 210093, P.R., China, E-mail: wwang.cn@gmail.com
Liang Yu
Affiliation:
Department of Mathematics, Nanjing University, 22 Hankou Road, Nanjing 210093, P.R., China, E-mail: yuliang.nju@gmail.com
*
Department of Mathematics, National University of Singapore, 2 Science Drive 2, Singapore 117543, Singapore
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Abstract

We prove that every Turing degree a bounding some non-GL2 degree is recursively enumerable in and above (r.e.a.) some 1-generic degree.

Keywords

Generalized high/low hierarchiesrecursively enumerable in and abovegeneric degree
Type
Research Article
Information
The Journal of Symbolic Logic , Volume 74 , Issue 3 , September 2009 , pp. 989 - 1000
Copyright
Copyright © Association for Symbolic Logic 2009

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References

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