Home›Lemmas›ウリゾーンの補題🌐日本語EnglishDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaTiếng ViệtРусскийالعربيةفارسی한국어中文日本語EntityQ1816967· pop 19· linked from 109 articlesウリゾーンの補題lemma that a topological space is normal iff any 2 disjoint closed subsets can be separated by a continuous functionWikidata factsImageUrysohn-function01.svgShow 1 more factCommons categoryUrysohn's lemmaSources (1)wikidata.orgvia Wikidata · CC0Available in 18 languagesEspañolFrançaisDeutsch中文РусскийPortuguêsItalianoCatalanFinnishHebrewNederlandsConnectionscontinuous functionEntityseparated setsEntityCategoriesLemmasSeparation axiomsTheorems in topologyTheory of continuous functions