Closed interval continuous function and continuity theorem of real number apply to a novel demonstration of general theorem of the mean.
应用闭区间连续函数性质和实数连续性定理，给出证明广义中值定理的一个新思路。
2
In this paper the operators do not possess any continuity and compactness, and that the operator is a self mapping on ordering interval is not required.
文中的算子不具有任何连续性和紧性，也不要求算子是某序区间上的自映象。
3
A strict counter-example showing that left-continuity and union-preserving are not equivalent for interval-valued triangular norms is constructed.