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Rice and Rice-Shapiro Theorems for transfinite correction grammars

โœ Scribed by John Case; Sanjay Jain


Book ID
102488171
Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
172 KB
Volume
57
Category
Article
ISSN
0044-3050

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โœฆ Synopsis


MSC (2010) 03D99

Hay and, then, Johnson extended the classic Rice and Rice-Shapiro Theorems for computably enumerable sets, to analogs for all the higher levels in the finite Ershov Hierarchy. The present paper extends their work (with some motivations presented) to analogs in the transfinite Ershov Hierarchy. Some of the transfinite cases are done for all transfinite notations in Kleene's important system of notations, O. Other cases are done for all transfinite notations in a very natural, proper subsystem OCantor of O, where OCantor has at least one notation for each constructive ordinal. In these latter cases it is open as to what happens for the entire set of transfinite notations in (O -OCantor).


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