EntityQ1071795· pop 18· linked from 116 articlesnormal spaceSign in to savetopological space in which every pair of disjoint closed sets has disjoint open neighborhoodsConnectionsparacompact spaceEntityseparated setsEntitycontinuous functionEntitytopological spaceEntityneighborhoodEntityproduct topologyEntityKolmogorov spaceEntityT1 spaceEntitycompletely regular spaceEntitypseudometric spaceEntitymathematicsEntityInternational Standard Book NumberEntitymathematical analysisEntityfunctionEntityreal numberEntitytopologyEntitydigital object identifierEntityAndrey KolmogorovEntitymetric spaceEntityalgebraic geometryEntityCategoriesProperties of topological spacesSeparation axioms