Richardson, Moses Extension theorems for solutions of irreflexive relations. (English) Zbl 0053.02903 Proc. Natl. Acad. Sci. USA 39, 649-655 (1953). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 16 Documents Keywords:set theory PDFBibTeX XMLCite \textit{M. Richardson}, Proc. Natl. Acad. Sci. USA 39, 649--655 (1953; Zbl 0053.02903) Full Text: DOI