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  PartialValuedRelation

Sigma KEE - PartialValuedRelation
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
部分值关系
一个 RelationPartialValuedRelation 是为了确保它不是一个 TotalValuedRelation,也就是说除了最后一个之外给每一个 参数位置分配一个值,但这不一定等于已经为最后一个参数位置设定赋值。注:如果一个 Relation既是 PartialValuedRelation 又是 SingleValuedRelation的话,那么它就是一个部分函数。
Relationships      
Parents 关系 The Class of relations. There are three kinds of Relation: Predicate, Function, and List. 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. A List, on the other hand, is a particular ordered n-tuple.


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