🌐EnglishEnglishDeutschEspañolFrançaisItalianoNederlandsPortuguêsSvenskaРусский한국어中文日本語EntityQ302542· pop 18· linked from 64 articlesdeontic logicThe field of philosphical logic and a class of formal systems that are concerned with obligation, permission, and related conceptsAvailable in 18 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsItalianoCatalanEsperantoEstonianConnectionspropositional calculusEntitymodal logicEntityCategoriesDeontic logicModal logicPhilosophical logic