RAIRO - Theoretical Informatics and Applications (RAIRO: ITA)

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On the hierarchies of Δ₂⁰-real numbers

Xizhong Zheng

RAIRO-Theor. Inf. Appl., 41 1 (2007) 3-25

Published online: 24 April 2007

DOI: 10.1051/ita:2007008

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