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Lattice embeddings in the recursively enumerable truth table degrees
Author:
Christine Ann Haught
Journal:
Trans. Amer. Math. Soc. 301 (1987), 515-535
MSC:
Primary 03D25; Secondary 03D30
MathSciNet review:
882702
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Abstract: It is shown that every finite lattice, and in fact every recursively presentable lattice, can be embedded in the r.e. tt-degrees by a map preserving least and greatest elements. The decidability of the -quantifier theory of the r.e. tt-degrees in the language with , and 1 is obtained as a corollary.
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- C. A. Haught, Turing and truth table degrees of
-generic and recursively enumerable sets, Dissertation, Cornell Univ., Ithaca, N. Y., 1985.
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- C. G. Jockusch, Jr. and J. Mohrherr, Embedding the diamond lattice in the recursively enumerable truth table degrees, Proc. Amer. Math. Soc. 94 (1985), 123-128. MR 781069 (87a:03077)
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- R. A. Shore, Finitely generated codings and the degrees r.e. in a degree
, Proc. Amer. Math. Soc. 84 (1982), 256-263. MR 637179 (84g:03061)
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DOI:
http://dx.doi.org/10.1090/S0002-9947-1987-0882702-4
PII:
S 0002-9947(1987)0882702-4
Article copyright:
© Copyright 1987 American Mathematical Society
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