Home›Basic concepts in infinite set theory›Dedekind-infinite set🌐EnglishEnglishDeutschEspañolFrançaisNederlandsPortuguêsРусский中文日本語EntityQ5249754· pop 6· linked from 146 articlesDedekind-infinite setproper subset B of A that is equinumerous to AAvailable in 6 languagesEspañolDeutsch日本語PortuguêsNederlandsvia Wikidata sitelinks · CC0Connectionsset theoryEntitysequenceEntityCategoriesBasic concepts in infinite set theoryCardinal numbers