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Property of t-retraceability and automorphisms of a lattice of recursively enumerable sets

✍ Scribed by Yu. D. Shmidt


Publisher
Springer US
Year
1989
Tongue
English
Weight
645 KB
Volume
28
Category
Article
ISSN
0002-5232

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## 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.