在该文里,为了解决L上Br和Wr这两种球的对称关系问题,作者给出了一种度量,且指出了它与Erceg’s伪度量的关系.最后证明L—fuzzy实直线R(L)满足这种度量.
In this paper, in order to solve the problems of symmetric relation between B~ and W~, we put forward a kind of new pointwise metric on L, and show the relation between it and Erceg's metric. Finally we prove L-real line satisfies the kind of metric.