EntityQ1192020· pop 5· linked from 17 articlesAronszajn treeSign in to savein set theory, a tree of uncountable height with no uncountable branches and no uncountable levelsConnectionscontinuum hypothesisEntityzbMATH OpenEntityInternational Standard Book NumberEntityset theoryEntitydigital object identifierEntityJSTOROrganizationcardinal numberEntityconsistencyEntityEncyclopedia of MathematicsEntityMathematical ReviewsEntityEuropean Mathematical SocietyEntityKönig's lemmaEntityinaccessible cardinalEntityMartin's axiomEntitySuslin's problemEntityKenneth KunenEntityNachman AronszajnEntityaxiom of constructibilityEntityRonald JensenEntityfirst uncountable ordinalEntityCategoriesIndependence resultsTrees (set theory)