It proved that extended real topological space is compactification space of real topological space added to two points. It pointed out that there exists compactification space added more points.
证明了扩张实数空间是实数空间的加两点紧化空间，指出了存在着加更多点的紧化空间。
It proved that extended real topological space is compactification space of real topological space added to two points. It pointed out that there exists compactification space added more points.
证明了扩张实数空间是实数空间的加两点紧化空间，指出了存在着加更多点的紧化空间。
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