Chen, Erming The generalization of Urysohn theorem. (Chinese. English summary) Zbl 1099.54506 J. Baoji Univ. Arts Sci., Nat. Sci. 24, No. 1, 1, 18 (2004). MSC: 54C10 Special maps on topological spaces (open, closed, perfect, etc.) Keywords:finite nonintersecting closed set; monotone PDF BibTeX XML Cite \textit{E. Chen}, J. Baoji Univ. Arts Sci., Nat. Sci. 24, No. 1, 1, 18 (2004; Zbl 1099.54506)