It has been proved that the nature of independence exists in the axiomatic system of Group, Euclidean space, distance space and topological space.
本文证明了:群、欧几里得空间、距离空间和拓扑空间的公理系统的独立性。
2
On the basis of the 6 principal components, these 63 parents were divided into 7 groups by Euclidean distance (3.5) and 76. 19% of them (48) belonged to the seventh group.