Geodesic
On the Equivalence of Borel Sets
Matematičeskie zametki, Tome 112 (2022) no. 1, pp. 83-87

Voir la notice de l'article provenant de la source Math-Net.Ru

A theorem on the existence of a definable selector for the relation $E_{\aleph_0}$ on the $\boldsymbol{\Delta}^0_2$-sets of the Baire space $\omega^\omega$ is proved.
Keywords: $\boldsymbol{\Delta}^0_2$-set, selector, equality modulo a countable set. 
@article{MZM_2022_112_1_a7,
     author = {S. V. Medvedev},
     title = {On the {Equivalence} of {Borel} {Sets}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {83--87},
     publisher = {mathdoc},
     volume = {112},
     number = {1},
     year = {2022},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2022_112_1_a7/}
}
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S. V. Medvedev. On the Equivalence of Borel Sets. Matematičeskie zametki, Tome 112 (2022) no. 1, pp. 83-87. http://geodesic.mathdoc.fr/item/MZM_2022_112_1_a7/