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| | hyperspace |
 | | The method is quite general, but for this discussion, we will consider only spaces which are subsets of the Euclidian spaces -- the real line, the plane, three dimensional space, and if needed, Euclidian spaces of higher dimension than three. |
 | | The entire x-axis, considered as a subset of the plane, is not compact because it is not bounded, but the circle of radius 2000 about the origin is compact. |
 | | A hyperspace of S is a new space in which the points are compact subsets of S and the distance between points is found using the Hausdorf distance. |
| www.spsu.edu /math/stricklen/Hyperspace/hyperspace.htm (1827 words) |
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