🌐EnglishEnglishDeutschEspañolFrançaisPortuguêsРусскийالعربية中文日本語EntityQ3508260· pop 9· linked from 336 articlescomplete theoryconsistent theory where every statement is provable or disprovableAvailable in 9 languagesEspañolFrançaisРусскийPortuguêsالعربيةBanglaCzechUkrainianvia Wikidata sitelinks · CC0Connectionssemantic theory of truthEntitymathematical logicEntityCategoriesMathematical logicModel theory