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KB Term:
Sigma KEE - QuaternaryRelation
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QuaternaryRelation
QuaternaryRelation
s relate four items. The two
subclass
es of
QuaternaryRelation
are
QuaternaryPredicate
and
TernaryFunction
.
Relationships
Parents
InheritableRelation
The class of
Relation
s whose properties can be inherited downward in the class hierarchy via the
subrelation
Predicate
.
Relation
The
Class
of relations. There are two kinds of
Relation
:
Predicate
and
Function
.
Predicate
s and
Function
s both denote sets of ordered n-tuples. The difference between these two
Class
es is that
Predicate
s cover formula-forming operators, while
Function
s cover term-forming operators.
Children
QuaternaryPredicate
The
Class
of
Predicate
s that require four arguments.
TernaryFunction
The
Class
of
Function
s that require exactly three arguments.
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Sigma version 3.0 is
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