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The index set {e: We ≡1X}.
Published online by Cambridge University Press: 12 March 2014
Abstract
Let X be any infinite, coinfinite r.e. set. We show that the index set {e: We ≡1X) is -complete, answering a question posed by Odifreddi in [2].
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- Research Article
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- Copyright © Association for Symbolic Logic 1986
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