上级分类: 数学

N元关系

YAML 问题

A concept can be considered 0-ary relation, while relations can be considered to be N>0 relations. An N-ary relation is a general way to refer to something that is either a concept or a relation.


没有子分类。

投票 (可选) (别通知) (可选)
请,登录
语言