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Sigma KEE - NegativeRealNumber
NegativeRealNumber(negative real number)
indirect_correlation, negative, negative_correlation

appearance as argument number 1
-------------------------


(documentation NegativeRealNumber ChineseLanguage "这是一个小于零的 RealNumber。") chinese_format.kif 1747-1747
(documentation NegativeRealNumber EnglishLanguage "A RealNumber that is less than zero.") Merge.kif 1853-1854
(externalImage NegativeRealNumber "http://upload.wikimedia.org/wikipedia/ commons/ 0/ 09/ Number-line.gif") pictureList.kif 10166-10166
(subclass NegativeRealNumber RealNumber) Merge.kif 1851-1851 Negative real number is a subclass of real number

appearance as argument number 2
-------------------------


(partition RealNumber NegativeRealNumber NonnegativeRealNumber) Merge.kif 1800-1800 Real number is exhaustively partitioned into negative real number and nonnegative real number
(subclass NegativeInteger NegativeRealNumber) Merge.kif 1894-1894 Negative integer is a subclass of negative real number
(termFormat ChineseLanguage NegativeRealNumber "负实数") chinese_format.kif 865-865
(termFormat EnglishLanguage NegativeRealNumber "negative real number") english_format.kif 937-937

antecedent
-------------------------


(<=>
    (instance ?NUMBER NegativeRealNumber)
    (and
        (lessThan ?NUMBER 0)
        (instance ?NUMBER RealNumber)))
Merge.kif 1856-1860 A quantity is an instance of negative real number if and only if the quantity is less than 0 and the quantity is an instance of real number
(=>
    (instance ?NUMBER NegativeRealNumber)
    (equal
        (SignumFn ?NUMBER) -1))
Merge.kif 4954-4956

consequent
-------------------------


(<=>
    (and
        (equal
            (AbsoluteValueFn ?NUMBER1) ?NUMBER2)
        (instance ?NUMBER1 RealNumber)
        (instance ?NUMBER2 RealNumber))
    (or
        (and
            (instance ?NUMBER1 NonnegativeRealNumber)
            (equal ?NUMBER1 ?NUMBER2))
        (and
            (instance ?NUMBER1 NegativeRealNumber)
            (equal ?NUMBER2
                (SubtractionFn 0 ?NUMBER1)))))
Merge.kif 4578-4589 The absolute value of a real number is equal to a nonnegative real number and the real number is an instance of real number and the nonnegative real number is an instance of real number if and only if the real number is an instance of nonnegative real number and the real number is equal to the nonnegative real number or the real number is an instance of negative real number and the nonnegative real number is equal to (0 and the real number)


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