🌐EnglishEnglishEspañolFrançaisРусскийالعربيةفارسی한국어中文日本語EntityQ3915714· pop 9· linked from 26 articlesPlayfair's axiomstatement equivalent to Euclid's parallel postulate, that given a line and a point not on it, there is at most one line parallel to the given line through the pointAvailable in 9 languagesEspañol中文日本語РусскийالعربيةPiedmonteseUkrainianفارسیvia Wikidata sitelinks · CC0ConnectionsparallelismEntityabsolute geometryEntityCategoriesFoundations of geometry