A New Operation of Sets--Inheriting Union
Nan Zhang · 2002
It is difficult to quickly determine some specified level data in a multilevel date system by using the existing sets of operation. In order to solve this problem, a new set of operation is proposed in this paper. This new set of operation is named inheriting union. As this new type of operation is defined on general sets, it can be applied to the calculation of sets of operation of all kinds. By using the inheriting union operation and some simple algorithms, the data at the specific level can be determined more easily.