"The Natural Hierarchy and Quasi-Hierarchy of Constructibility Degrees."

Philip D. Welch (1986)

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DOI: 10.2307/2273949

access: closed

type: Journal Article

metadata version: 2017-05-28

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Philip D. Welch:
The Natural Hierarchy and Quasi-Hierarchy of Constructibility Degrees. J. Symb. Log. 51(1): 130-134 (1986)

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