🌐EnglishEnglishDeutschFrançaisItalianoPolski한국어中文日本語EntityQ138596· pop 9· linked from 17 articlesMostowski collapse lemmatheoremAvailable in 9 languagesFrançaisDeutsch中文日本語ItalianoCatalanPolski한국어via Wikidata sitelinks · CC0Connectionssemantic theory of truthEntitymathematical logicEntityCategoriesLemmasLemmas in set theoryWellfoundedness