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Some properties of Z - Scott open set, Z - Lawson open set, Z - Scott topology and Z - Lawson topology are studied.
研究了Z - 连续偏序集上的Z-Scott开集, Z -Lawson 开集, Z-Scott拓扑及Z -Lawson 拓扑的一些性质.
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In point set topological theory, open set and neighborhood are the basic concept.
在点集拓扑理论中, 开集、域等是最基本的概念.
开集???
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