EntityQ239179· pop 15· linked from 340 articlesnon-classical logicSign in to saveformal systems of logic that significantly differ from standard logical systemsConnectionslogicEntitypropositionEntityprinciple of excluded middleEntitythree-state logicEntityintermediate logicEntityDov GabbayEntitycomputer scienceEntityGeorg Wilhelm Friedrich HegelEntitytruthEntityMarxismEntityInternational Standard Book NumberEntityprobabilityEntitynameEntityset theoryEntityreasonEntityKurt GödelEntitydigital object identifierEntitytheoremEntitymathematical logicEntityparadoxEntityCategoriesFormal logicHistory of logicNon-classical logicPhilosophy of logic