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单词
first countable topological space
释义
first countable topological space
first countable topological space
[
¦fərst ′kau̇nt·ə·bəl ‚täp·ə¦läj·ə·kəl ′spās
]
(mathematics)
A topological space in which every point has a countable number of open neighborhoods so that any neighborhood of this point contains one of these.
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更新时间:2025/3/1 2:14:19