Properly Σ2 Enumeration Degrees

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Mathematical Logic Quarterly 34 (6):491-522 (1988)
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10.1002/malq.19880340603

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Citations of this work

Avoiding uniformity in the Δ 2 0 enumeration degrees.Liliana Badillo & Charles M. Harris - 2014 - Annals of Pure and Applied Logic 165 (9):1355-1379.

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Theory of Recursive Functions and Effective Computability.Hartley Rogers - 1971 - Journal of Symbolic Logic 36 (1):141-146.

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