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Sigma KEE - TernaryRelation

KB Term:

三元关系

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.
Children	二元函数	The Class of Functions that require two arguments.
	三元谓语	The Class of Predicates that require exactly three arguments.