330
个编辑
更改
跳到导航
跳到搜索
第252行：
第252行： − + 第258行：
第258行： − 其中有一个层次元素，高于集合中的所有其他元素。+
→通俗表达 Informal representation
No element is superior to itself, and
No element is superior to itself, and
任何元素都不高于自身，且
# 任何元素都不高于自身，且
# One element, the ''hierarch'', is superior to all of the other elements in the set.
# One element, the ''hierarch'', is superior to all of the other elements in the set.
One element, the hierarch, is superior to all of the other elements in the set.
One element, the hierarch, is superior to all of the other elements in the set.
# 其中有一个''层次''元素，高于集合中的所有其他元素。
The first requirement is also interpreted to mean that a hierarchy can have no [[Cycle (graph theory)|circular relationships]]; the association between two objects is always [[Transitive relation|transitive]].
The first requirement is also interpreted to mean that a hierarchy can have no [[Cycle (graph theory)|circular relationships]]; the association between two objects is always [[Transitive relation|transitive]].