2023-10-22
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Please prove that local homeomorphisms are open maps.
2023-10-22
立即答题
2023-10-22
立即答题
Please prove that finite complement spaces are separable.
2023-10-22
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立即答题
The necessary and sufficient condition for the separability of a discrete space is that it only contains coutable points.
2023-10-22
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立即答题
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