🌐EnglishEnglishEspañolFrançaisItalianoPolskiPortuguêsالعربيةفارسی中文日本語EntityQ3502887· pop 10· linked from 323 articlesfree logicform of logic with fewer existential presuppositions than classical logicAvailable in 10 languagesEspañol中文PortuguêsItalianoالعربيةCatalanCzechPolskiفارسیvia Wikidata sitelinks · CC0Connectionssemantic theory of truthEntitymathematical logicEntityCategoriesNon-classical logic