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    Real Analysis...Open Sets

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    Prove that the open interval...with a, b being real numbers is an open set.
    (See attachment for full question)

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    See attached

    Prove that the open interval with a, b real numbers is an open set.

    An open interval is an interval that does not include its end points.
    The open interval

    is denoted (a, b).
    Let S be a subset of a metric ...

    Solution Summary

    A real analysis for open sets are examined. The open intervals are proved.