混合记忆信息与记忆信息筛选

P集合（packet sets）是把动态特性引入到有限普通集合X中，改进有限普通集合X而提出的；P集合具有动态特性。信息系统存在丢失信息元与增加信息元的现象，把生物的记忆特征引入到这两个现象中，利用P集合，给出F-记忆信息，F-记忆信息与混合记忆信息的概念与特征，给出记忆度量概念与记忆信息的筛选定理。此外，提出记忆信息的依赖性定理及混合记忆不变性定理，给出记忆信息的应用。信息被记忆是P 集合具有的诸多应用特性之一。

Mixed memory information and memory information filtering

P-sets (packet sets) is proposed by introducing the dynamic characteristic into a finite general set X and improving the finite general set X. P-sets has dynamic characteristics. There are two phenomena that information elements are lost or increased in information systems. By introducing the memory characteristic of living creatures into the phenomena, and using P-sets, the concepts F-memory information of memory information, F-memory information and mixed memory information as well as their characteristics are given. The concept of memory measure and the filtering theorem of memory information are given. Moreover, the dependence theorem of memory information and the invariance theorem of mixed memory are proposed. The application of memory information is provided. That information is memorized is one of the many applied characteristics about P-sets.