"Index sets in the arithmetical Hierarchy."

Ulrike Brandt (1988)

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DOI: 10.1016/0168-0072(88)90023-1

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type: Journal Article

metadata version: 2020-02-21

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Ulrike Brandt:
Index sets in the arithmetical Hierarchy. Ann. Pure Appl. Log. 37(2): 101-110 (1988)

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