EntityQ7246960· pop 6· linked from 33 articlesProblem of multiple generalitySign in to savefailure in traditional logic to describe certain intuitively valid inferencesConnectionsquantifierEntityterm logicEntitydouble negationEntityBertrand RussellEntityLudwig WittgensteinEntityInternational Standard Book NumberEntityGeorg CantorEntityKurt GödelEntityQ134661EntityGottlob FregeEntitydefinitionEntityCharles Sanders PeirceEntityRichard DedekindEntitysyllogismEntityassociativityEntityGiuseppe PeanoEntityWillard Van Orman QuineEntityBernard BolzanoEntitypropositional calculusEntitydistributive propertyEntityCategoriesClassical logicTerm logic