Melikyan, S. M. Constructive transfinite hierarchies of pseudonumbers. (Russian) Zbl 0307.02024 Dokl. Akad. Nauk Arm. SSR 59(1974), 257-260 (1975). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page MSC: 03F99 Proof theory and constructive mathematics 03D60 Computability and recursion theory on ordinals, admissible sets, etc. PDFBibTeX XMLCite \textit{S. M. Melikyan}, Dokl., Akad. Nauk Arm. SSR 59, 257--260 (1975; Zbl 0307.02024)