Orbits of computably enumerable sets: lo
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Russell Miller
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Article
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2002
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Elsevier Science
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English
β 222 KB
We investigate the orbit of a low computably enumerable (c.e.) set under automorphisms of the partial order E of c.e. sets under inclusion. Given an arbitrary low c.e. set A and an arbitrary noncomputable c.e. set C, we use the New Extension Theorem of Soare to construct an automorphism of E mapping