We first define the fuzzy number intuitionistic fuzzy set and give its some operations. we also discuss the links of it and the interval valued intuitionistic fuzzy set, the intuitionistic fuzzy set.
定义一种新的模糊数直觉模糊集，同时给出了它的一些运算，并讨论了它与直觉模糊集、区间值直觉模糊集的关系。
A point operator by means of interval index of an element in the interval valued fuzzy set is introduced.
借助区间值模糊集中元素的区间指数，引入点算子，该算子将一区间值模糊集与一模糊集族联系起来。
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