Recent content by edwinbrody
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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?- edwinbrody
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- Forum: Calculus and Beyond Homework Help
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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.- edwinbrody
- Post #2
- Forum: Calculus and Beyond Homework Help
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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...- edwinbrody
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- Topology
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- Forum: Calculus and Beyond Homework Help