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KB Term:
Sigma KEE - RelationExtendedToQuantities
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延伸数量关系
RelationExtendedToQuantities
是一个
Relation
,如果它对一串
RealNumber
的参数值是真的,那么 他对一串有着和一些衡量单位幅度
ConstantQuantity
的实例也是真的。例如:
lessThan
关系可延伸到数量 上, 意思是(
lessThan
?QUANTITY1 ?QUANTITY2) 对于 ?QUANTITY1 和 ?QUANTITY2 所有的数量对, 当且仅当对于某些 ?NUMBER1,?NUMBER2 和 ?UNIT,?QUANTITY1 = (
MeasureFn
?NUMBER1 ?UNIT), ?QUANTITY2 = (
MeasureFn
?NUMBER2 ?UNIT)和(
lessThan
?NUMBER1 ?NUMBER2),对于所有 ?QUANTITY1 和 ?QUANTITY2 可以量度的单位 ?UNIT。注:当一个
RelationExtendedToQuantities
由
RealNumber
被延伸到
ConstantQuantity
的实例实时,该
ConstantQuantity
必须以相同的实物尺寸 来量度。
Relationships
Parents
可继承的关系
The class of
Relation
s 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
.
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
BinaryRelationExtendedToQuantities
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