EntityQ176630· pop 12· linked from 93 articlesrelevance logicSign in to savemathematical logic system that imposes certain restrictions on implicationConnectionslogical consequenceEntitythree-state logicEntityStrict conditionalEntityUnited StatesCountryWikipediaConceptlogicEntityInternational Standard Book NumberEntityPittsburghEntityset theoryEntitydigital object identifierEntityInternational Standard Serial NumberEntityUncyclopediaEntitycommutative propertyEntityassociativityEntitybinary operationEntityJSTOREntitypropositional calculusEntityfuzzy logicEntityAlonzo ChurchEntityidentity elementEntityCategoriesNon-classical logicParaconsistent logicSubstructural logic