Home›Browse›regular semigroup🌐EnglishEnglishDeutschEspañolFrançaisPolskiPortuguêsРусский日本語EntityQ3022119· pop 5· linked from 28 articlesregular semigroupSign in to savesemigroup such that, for every element x, there exists another element y such that xyx=xAvailable in 5 languagesFrançaisDeutschPortuguêsPolskivia Wikidata sitelinks · CC0