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| | Amazon.com: "open superset": Key Phrase page (Site not responding. Last check: ) |
 | | Furthermore, (X, T) is not a regular space since a 0 {c}, and the only open superset of the closed set {c} is X which also contains a. |
 | | Then the set G= U(x-r)/2,x+77/2) xEA is an open superset of A disjoint from B. Thus the result is an immediate consequence of the previous problem. |
 | | The first statement is clear, since the union of any covering sequence of open intervals is an open superset of A. Key Phrases in this book: density topology, wandering set, category theorem, nowhere dense set, nowhere dense subset, recurrence theorem, recurrence property, rational endpoints, residual set, closed subinterval, measure zero, countable base (See more) |
| www.amazon.com /phrase/open-superset (506 words) |
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