🌐EnglishEnglishFrançaisPortuguês한국어日本語EntityQ3010804· pop 5· linked from 28 articlescoreAlso known as normal corelargest normal subgroup that is contained in a given subgroupAvailable in 5 languagesFrançais日本語Esperanto한국어via Wikidata sitelinks · CC0Connectionsgroup actionEntitymathematicsEntityCategoriesGroup theory