... nested closed interval 闭区间套 finite closed interval 有限闭区间 closed interval column 闭区间列 ...
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finite closed interval
有限闭区间
以上为机器翻译结果，长、整句建议使用 人工翻译 。
And finally we prove that let a be a subset of real Numbers, if every continuous function which is defined on a and taken value in a has fixed point, then a is a finite closed interval.
最后还证明了对于实数的子集a，如果定义在A上取值于A内的任一连续函数都有不动点，则A为实数的有限闭区间。
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