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Degrees of unsolvability. (English) Zbl 0245.02037

North-Holland Mathematics Studies. 2. Amsterdam-London: North-Holland Publishing Company; New York: American Elsevier Publishing Comp., Inc. 111 p. Hfl. 20.00; $ 5.75 (1971).

MSC:

03D30 Other degrees and reducibilities in computability and recursion theory
03-02 Research exposition (monographs, survey articles) pertaining to mathematical logic and foundations