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Math Help - Denseness question

  1. October 31st 2009, 01:44 AM #1
    bluebiro
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    Denseness question

    Show that a subset (D) is dense iff for every x in R, there is a sequence such that the sequence is in D and the sequence tends to x.
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  2. October 31st 2009, 02:25 AM #2
    HallsofIvy
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    What is the definition of "dense in R"? How can you show that definition holds?
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« "Halfway" through a proof, help needed | sequence question ! »

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