Sacks, G. E. On suborderings of degrees of recursive unsolvability. (English) Zbl 0118.25202 Z. Math. Logik Grundlagen Math. 7, 46-56 (1961). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 17 Documents Keywords:mathematical logic PDFBibTeX XMLCite \textit{G. E. Sacks}, Z. Math. Logik Grundlagen Math. 7, 46--56 (1961; Zbl 0118.25202) Full Text: DOI