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A Decidable Class of Equations in Recursive Arithmetic

✍ Scribed by R. L. Goodstein; R. D. Lee


Publisher
John Wiley and Sons
Year
1966
Tongue
English
Weight
201 KB
Volume
12
Category
Article
ISSN
0044-3050

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πŸ“œ SIMILAR VOLUMES


On a Class of Recursively Enumerable Set
✍ Farzad Didehvar πŸ“‚ Article πŸ“… 1999 πŸ› John Wiley and Sons 🌐 English βš– 225 KB πŸ‘ 1 views

## Abstract We define a class of so‐called βˆ‘(__n__)‐sets as a natural closure of recursively enumerable sets __W__~n~ under the relation β€œβˆˆβ€ and study its properties.

Relatively Recursively Enumerable Versus
✍ Grzegorz Michalski πŸ“‚ Article πŸ“… 1995 πŸ› John Wiley and Sons 🌐 English βš– 416 KB

## Abstract We show that that every countable model of __PA__ has a conservative extension __M__ with a subset __Y__ such that a certain Ξ£~1~(__Y__)‐formula defines in __M__ a subset which is not r. e. relative to __Y__.