Relative to any nonrecursive set
Author:
Abstract
There is a countable first order structure M \mathcal {M} such that for any set of integers X X , X X is not recursive if and only if there is a presentation of M \mathcal {M} which is recursive in X X .
Publisher
American Mathematical Society (AMS)
Subject
Applied Mathematics,General Mathematics
Link
http://www.ams.org/proc/1998-126-07/S0002-9939-98-04307-X/S0002-9939-98-04307-X.pdf
Reference2 articles.
1. Maximal orders in rational cyclic algebras of composite degree;Perlis, Sam;Trans. Amer. Math. Soc.,1939
2. [Wehner] Wehner, S. [1996]. Enumerations, countable structures and Turing degrees, Proc. Amer. Math. Soc. 126 (1998), 2131–2139.
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