EntityQ7168101· pop 14· linked from 29 articlesperfect setSign in to savesubset of a topological space that is closed and has no isolated pointsConnectionsInternational Standard Book NumberEntityGeorg CantorEntitydigital object identifierEntityempty setEntityintervalEntitycontinuous functionEntitytopological spaceEntityinjectionEntitynumber lineEntitycardinalityEntityElsevierEntitycountable setEntityneighborhoodEntityCantor setEntitylimit pointEntitygeneral topologyEntityHausdorff spaceEntitySpringer Science+Business MediaEntityclosed setEntitycomplete metric spaceEntityCategoriesProperties of topological spacesTopology