🌐EnglishEnglishDeutschFrançaisItalianoNederlandsPortuguêsРусский中文日本語EntityQ2462350· pop 11· linked from 94 articlesKripke semanticssemantics for modal logicsAvailable in 9 languagesFrançaisDeutsch中文日本語РусскийPortuguêsNederlandsUkrainianvia Wikidata sitelinks · CC0Connectionspartially ordered setEntityClarence Irving LewisEntityCategoriesMathematical logicModal logicModel theoryNon-classical logicPhilosophical logicSheaf theory