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Sigma KEE - TemporalRelation

时间关系

这是时间 Relation 的 Class，这个 Class 包括间隔拓扑的(时间)概念、(时间)模式和(时间)延伸。

Relationships
Parents	可继承的关系	The class of Relations whose properties can be inherited downward in the class hierarchy via the subrelation Predicate.
	关系	The Class of relations. There are two kinds of Relation: Predicate and Function. Predicates and Functions both denote sets of ordered n-tuples. The difference between these two Classes is that Predicates cover formula-forming operators, while Functions cover term-forming operators.