Korean Journal of Mathematics

The Kangwon-Kyungki Mathematical Society (강원경기수학회)
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THE IDEMPOTENT RELATION AND THE PROOF OF URYSOHN'S LEMMA

  • Kim, Seungwook (Department of Mathematics Hankuk University of Foreign Studies)
  • Received : 2008.09.22
  • Published : 2009.12.30
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Abstract

The Urysohn's lemma which is crucial tool for the study of the metrization problem is proved in the sense of set-theoretic concept, namely, by the idempotent relation defined on a given topology.

Keywords

References

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