This paper tries to give a definition of the sum and the product of infinite infinitesimal,and it also tries to give some examples to illustrate the sum and the product of infinite infinitesimal being or not being infinitesimal.
给出了无限个无穷小的和、积的一种定义，并用例子指出无限个无穷小的和、积既可能是无穷小，也可能不是无穷小。
The notion of the subshift of infinite type on noncompact symbolic space was introduced,and the chaotic behave of the subshift was discussed.
引入了非紧致符号空间上的无限子移位的概念，讨论了无限型子移位映射的混沌性质，给出了三个分别与Ｌｉ－Ｙｏｒｋｅ意义下混沌等价的条件。
Plato tried his best to argue that the infinite could be verified by the finite things, but he failed, and so did Kant.
我们认为这个问题源出自柏拉图相论的分离问题,柏拉图试图从有限的感性世界逻辑地上升到无限的理性世界,康德在《判断力批判》里也试图从有限过渡到无限,但他们都以失败告终。