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Increasing η ‐representable degrees
Mathematical Logic Quarterly 55 (6):633-636 (2009)
Abstract
In this paper we prove that any Δ30 degree has an increasing η -representation. Therefore, there is an increasing η -representable set without a strong η -representationMy notes
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Citations of this work
Automorphisms of η-like computable linear orderings and Kierstead's conjecture.Charles M. Harris, Kyung Il Lee & S. Barry Cooper - 2016 - Mathematical Logic Quarterly 62 (6):481-506.
The Kierstead's Conjecture and limitwise monotonic functions.Guohua Wu & Maxim Zubkov - 2018 - Annals of Pure and Applied Logic 169 (6):467-486.
A Characterization of the Strongly -Representable Many-One Degrees.Josiah Jacobsen-Grocott - 2022 - Journal of Symbolic Logic 87 (4):1631-1642.
The Simplest Low Linear Order with No Computable Copies.Andrey Frolov & Maxim Zubkov - 2024 - Journal of Symbolic Logic 89 (1):97-111.
References found in this work
Η-representation of sets and degrees.Kenneth Harris - 2008 - Journal of Symbolic Logic 73 (4):1097-1121.
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