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Minimal Degrees and the Jump Operator.by S. B. Cooper

โœ Scribed by Review by: David Posner

Book ID
124972519
Publisher
Association for Symbolic Logic
Year
1975
Tongue
English
Weight
110 KB
Volume
40
Category
Article
ISSN
0022-4812

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๐Ÿ“œ SIMILAR VOLUMES

Minimal Degrees and the Jump Operator
Minimal Degrees and the Jump Operator
โœ S. B. Cooper ๐Ÿ“‚ Article ๐Ÿ“… 1973 ๐Ÿ› Association for Symbolic Logic ๐ŸŒ English โš– 544 KB
Strong Minimal Covers for Recursively En
Strong Minimal Covers for Recursively Enumerable Degrees
โœ S. Barry Cooper ๐Ÿ“‚ Article ๐Ÿ“… 1996 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 386 KB

## Abstract We prove that there exists a nonzero recursively enumerable Turing degree possessing a strong minimal cover. Mathematics Subject Classification: 03D30.

Properly ฮฃ2 minimal degrees and 0โ€ณ compl
Properly ฮฃ2 minimal degrees and 0โ€ณ complementation
โœ S. Barry Cooper; Andrew E. M. Lewis; Yue Yang ๐Ÿ“‚ Article ๐Ÿ“… 2005 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 96 KB

We show that there exists a properly ฮฃ2 minimal (Turing) degree b, and moreover that b can be chosen to join with 0 to 0 -so that b is a 0 complement for every degree a such that 0 โ‰ค a < 0 .