$\Sigma$-definability in admissible sets
Doklady Akademii Nauk, Tome 285 (1985) no. 4, pp. 792-795
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@article{DAN_1985_285_4_a3,
author = {Yu. L. Ershov},
title = {$\Sigma$-definability in admissible sets},
journal = {Doklady Akademii Nauk},
pages = {792--795},
publisher = {mathdoc},
volume = {285},
number = {4},
year = {1985},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/DAN_1985_285_4_a3/}
}
Yu. L. Ershov. $\Sigma$-definability in admissible sets. Doklady Akademii Nauk, Tome 285 (1985) no. 4, pp. 792-795. http://geodesic.mathdoc.fr/item/DAN_1985_285_4_a3/