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.


单值关系 
A Relation is a SingleValuedRelation just in case an assignment of values to every argument position except the last one determines at most one assignment for the last argument position. Note that not all SingleValuedRelations are TotalValuedRelations.

Children 
二元函数  The Class of Functions that require two arguments. 
 连续函数  Functions which are continuous. This concept is taken as primitive until representations for limits are devised. 
 四元函数  The Class of Functions that require exactly four arguments. 
 三元函数  The Class of Functions that require exactly three arguments. 
 一元函数  The Class of Functions that require a single argument. 