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A contrast to the low basis theorem

Authors :
Lippe, David
Source :
Annals of Pure & Applied Logic. Oct2002, Vol. 117 Issue 1-3, p203. 5p.
Publication Year :
2002

Abstract

We prove the existence of a perfect <f>Π01</f> set of reals such that the uniform join of any of its infinite subsets is above <f>0′</f>. We explain a couple of ways in which this demonstrates the optimality of the Low Basis Theorem. [Copyright &y& Elsevier]

Subjects

Subjects :
*RECURSION theory
*SET theory

Details

Language :
English
ISSN :
01680072
Volume :
117
Issue :
1-3
Database :
Academic Search Index
Journal :
Annals of Pure & Applied Logic
Publication Type :
Academic Journal
Accession number :
7807360
Full Text :
https://doi.org/10.1016/S0168-0072(01)00116-6