Index sets in the hyperarithmetical hierarchy
- 1 January 1985
- journal article
- Published by Springer Nature in Siberian Mathematical Journal
- Vol. 25 (3) , 474-488
- https://doi.org/10.1007/bf00968988
Abstract
No abstract availableKeywords
This publication has 3 references indexed in Scilit:
- Structures of the degrees of unsolvability of index setsAlgebra and Logic, 1979
- Some remarks about classes of recursively enumerable setsSiberian Mathematical Journal, 1978
- Index sets in Ershov's hierarchyThe Journal of Symbolic Logic, 1974