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On Recursion Theory in I∑1
Petr Hájek and Antonín Kučera
The Journal of Symbolic Logic
Vol. 54, No. 2 (Jun., 1989), pp. 576-589
Published by: Association for Symbolic Logic
Stable URL: http://www.jstor.org/stable/2274871
Page Count: 14
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It is shown that the low basis theorem is meaningful and provable in I∑1 and that the priority-free solution to Post's problem formalizes in this theory.
The Journal of Symbolic Logic © 1989 Association for Symbolic Logic