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Sigma KEE - SpatialRelation

空間的関係

Relation の Class は、広い意味で空間的である。この Class には、単なる関係とトポロジ的な関係が含まれる。

Relationships
Parents	InheritableRelation	The class of Relations whose properties can be inherited downward in the class hierarchy via the subrelation Predicate.
	関係	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.