🌐EnglishEnglishDeutschEspañolPortuguês中文EntityQ1585647· pop 6· linked from 14 articleslogical harmonyprinciple governing approaches to logical semanticsAvailable in 6 languagesEspañolDeutsch中文PortuguêsFinnishvia Wikidata sitelinks · CC0ConnectionsLudwig WittgensteinEntitynatural deductionEntityCategoriesLogicPhilosophy of logic