PlanetMath: Recursively Enumerable Object id is 3045, canonical name is Recursivelyenumerable. Computability and recursion theory Recursively enumerable sets and degrees) http://planetmath.org/encyclopedia/RecursivelyEnumerable.html
Signatures From EmilPost Post is best known for his work on polyadic groups, Recursivelyenumerable sets, and degrees of unsolvability, as well as for his contribution to the http://c2.com/cgi/wikiSig?EmilPost
$d$-simple Sets, Small Sets, And Degree Classes. 22 C. E. M. Yates, Three theorems on the degree of Recursivelyenumerable sets, Duke Math. J., 32 (1965),461468. Mathematical Reviews (MathSciNet) MR31 http://projecteuclid.org/handle/euclid.pjm/1102780321
JSTOR Degree Theoretic Definitions Of The Low$_2$ Recursively There exist low2lowl wtt-bottomed T-degrees containing r. e. sets of 1993 , Working below a high Recursivelyenumerable degree, this JOURNAL, http://links.jstor.org/sici?sici=0022-4812(199509)60:3<727:DTDOTL>2.0.CO;2-6
Post's Theorem the connection between the arithmetical hierarchy and the Turing degrees . For every , if and only if and only if B is a Recursivelyenumerable set http://www.therfcc.org/post's-theorem-357961.html
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