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Notes
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1. The set contains some boundary points. 2. See the definition of domain. 3. Every neighbourhood of 1 contains points of the set. 4. E.g., 0 is an accumulation point of {1/n}. |
 |
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Notes
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1. The set contains some boundary points. 2. See the definition of domain. 3. Every neighbourhood of 1 contains points of the set. 4. E.g., 0 is an accumulation point of {1/n}. |
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