Szpilrajn, Edward The characteristic function of a sequence of sets and some of its applications. (English) Zbl 0019.29701 Fundam. Math. 31, 207-223 (1938). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 2 Documents Keywords:Set theory, real functions PDFBibTeX XMLCite \textit{E. Szpilrajn}, Fundam. Math. 31, 207--223 (1938; Zbl 0019.29701) Full Text: DOI EuDML