Staš, Michal Hurewicz scheme. (English) Zbl 1177.03049 Acta Univ. Carol., Math. Phys. 49, No. 2, 75-78 (2008). Summary: We present a simple proof of Hurewicz theorem saying that every coanalytic non-\(G_\delta\)-set \(C\) in a Polish space contains a countable set \(L\subseteq C\) without isolated points such that \((\overline{L}\setminus L)\cap C=\emptyset\). Cited in 1 Review MSC: 03E15 Descriptive set theory 42A20 Convergence and absolute convergence of Fourier and trigonometric series Keywords:analytic set; Suslin scheme; separating set; Hurewicz theorem; coanalytic set; Polish space PDF BibTeX XML Cite \textit{M. Staš}, Acta Univ. Carol., Math. Phys. 49, No. 2, 75--78 (2008; Zbl 1177.03049) Full Text: EuDML