Incomparability in local structures ofs-degrees andQ-degrees

Chitaia, I; Ng, KM; Sorbi, A; Yang, Y

Sorbi, A (corresponding author), Univ Siena, Dipartimento Ingn Informat & Sci Matemat, I-53100 Siena, Italy.

ARCHIVE FOR MATHEMATICAL LOGIC, 2020; 59 (7-8): 777

Abstract

We show that for every intermediate sigma 20s-degree (i.e. a nonzeros-degree strictly below thes-degree of the complement of the halting set) there ex......

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