EntityQ5361594· pop 7· linked from 68 articlesintermediate logicSign in to savepropositional logic extending intuitionistic logicConnectionsthree-state logicEntityKripke semanticsEntityInternational Standard Book NumberEntityKurt GödelEntitydigital object identifierEntitymathematical logicEntitysubsetEntityJSTOREntityOxford University PressEntitypropositional calculusEntityAugustus De MorganEntityAlfred TarskiEntityDe Morgan's lawsEntityfuzzy logicEntityHilary PutnamEntityfinite setEntityVHDLEntitymodal logicEntityprinciple of excluded middleEntityQ22908627EntityCategoriesNon-classical logicPropositional calculusSystems of formal logic