Works by Giorgi, Matthew (exact spelling)

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    Properly [image] Enumeration Degrees and the High/Low Hierarchy.Matthew Giorgi, Andrea Sorbi & Yue Yang - 2006 - Journal of Symbolic Logic 71 (4):1125 - 1144.
    We show that there exist downwards properly $\Sigma _{2}^{0}$ (in fact noncuppable) e-degrees that are not high. We also show that every high e-degree bounds a noncuppable e-degree.
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