Home›Browse›handshaking lemma🌐EnglishEnglishBahasa IndonesiaDeutschEspañolFrançaisItalianoPolskiPortuguêsРусскийفارسیไทย中文日本語EntityQ954454· pop 18· linked from 33 articleshandshaking lemmaSign in to savelemma that every node-link graph has an even number of odd-degree verticesAvailable in 18 languagesEspañolFrançaisDeutsch中文РусскийPortuguêsItalianoArmenianCatalanGalicianHebrewHungarianPolskiTamilUkrainianفارسیไทยvia Wikidata sitelinks · CC0