Recent content by edwinbrody

  1. E

    Topology - spaces, compactness

    So, for instance in this example, If I take the space bounded by a circle of radius 2 centered on the origin, and the square bounded by x from [0,1] and y from [0,1] as the subset within it, the subset is closed and bounded, but because of incompleteness of the rationals this subset is not compact?
  2. E

    Topology - spaces, compactness

    Is there an interval or set that is neither closed nor open? I know if for example the rationals are being considered, they are neither closed nor open, and because of this fact, the rationals are not compact.
  3. E

    Topology - spaces, compactness

    Homework Statement Find a metric space and a closed, bounded subset in it which is not compact. Homework Equations N/A The Attempt at a Solution I know that a metric space is a space that has definition such that a point has a distance to any other point. However, I know a...
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