🌐EnglishEnglishEspañolFrançaisPortuguêsSvenska한국어中文日本語EntityQ5161172· pop 7· linked from 54 articlesConjunction introductionrule of inference of propositional logicAvailable in 7 languagesEspañolFrançais日本語PortuguêsSvenska한국어via Wikidata sitelinks · CC0ConnectionslogicEntityInternational Standard Book NumberEntityCategoriesRules of inferenceTheorems in propositional logic