Atribución-NoComercial 4.0 InternacionalPachón Rubiano, Nestor2019-07-032019-07-032013https://repositorio.unal.edu.co/handle/unal/73888We demonstrate that the ordinable topologies for a set X areprecisely those that occupy the upper part of the lattice of topologies for X, and that they determine a lattice, not always complete or distributive. We also found the amount of complements, and principal complements, for certainordinable topologies, generalizing a known result of P. S. Schnare.application/pdfspaDerechos reservados - Universidad Nacional de Colombiahttp://creativecommons.org/licenses/by-nc/4.0/Artículo de revistahttp://bdigital.unal.edu.co/38365/info:eu-repo/semantics/openAccessOrdinable element in an ordered setlatticeultratopologies.