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JSYML
2010
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On Downey's conjecture
We prove that the degree structures of the d.c.e. and the 3-c.e. Turing degrees are not elementarily equivalent, thus refuting a conjecture of Downey. More speci´Čücally, we show t...
Marat M. Arslanov, Iskander Sh. Kalimullin, Steffe...
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