"Properly Σ₂ Enumeration Degrees."

S. Barry Cooper, C. S. Copestake (1988)

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DOI: 10.1002/MALQ.19880340603

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type: Journal Article

metadata version: 2017-05-17

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S. Barry Cooper, C. S. Copestake:
Properly Σ₂ Enumeration Degrees. Math. Log. Q. 34(6): 491-522 (1988)

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