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Gustav Hensel and Hilary Putnam. On the notational independence of various hierarchies of degrees of unsolvability. The journal of symbolic logic, vol. 30 (1965), pp. 69–86.
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Gustav Hensel and Hilary Putnam. On the notational independence of various hierarchies of degrees of unsolvability. The journal of symbolic logic, vol. 30 (1965), pp. 69–86.
Published online by Cambridge University Press: 12 March 2014
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- Copyright © Association for Symbolic Logic 1967