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Sigma KEE - PHValue
PHValue(PH value)

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


(documentation PHValue EnglishLanguage "PHValue ('pH') is a UnitOfMeasure used to measure the acidity or alkalinity of a solution. The pH scale ranges from 0 to 14. The pH of a neutral solution is 7. Acid solutions have a pH value less than seven. Alkaline solutions have a value greater than seven.") Geography.kif 2542-2546
(instance PHValue NonCompositeUnitOfMeasure) Geography.kif 2541-2541 PH value is an instance of non composite unit of measure

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


(names "pH" PHValue) Geography.kif 2539-2539 PH value has name "pH"
(termFormat ChineseLanguage PHValue "酸碱度") domainEnglishFormat.kif 45710-45710
(termFormat ChineseTraditionalLanguage PHValue "酸鹼度") domainEnglishFormat.kif 45709-45709
(termFormat EnglishLanguage PHValue "PH value") domainEnglishFormat.kif 45708-45708

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


(<=>
    (measure ?SOLUTION
        (MeasureFn ?PH PHValue))
    (potentialOfHydrogen ?SOLUTION ?PH))
Geography.kif 2548-2551 The measure of a solution is a real number PH value(s) if and only if the real number is a potential of hydrogen of the solution
(=>
    (and
        (instance ?RAINFALL Process)
        (patient ?RAINFALL ?RAIN)
        (instance ?RAIN Water)
        (measure ?RAIN
            (MeasureFn ?PH PHValue)))
    (lessThan ?PH 5.6))
Geography.kif 2561-2567
(=>
    (measure ?SOLUTION
        (MeasureFn ?PH PHValue))
    (greaterThanOrEqualTo ?PH 0.0))
Geography.kif 2557-2559
(=>
    (measure ?SOLUTION
        (MeasureFn ?PH PHValue))
    (lessThanOrEqualTo ?PH 14.0))
Geography.kif 2553-2555

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


(=>
    (and
        (instance ?C CurdlingMilk)
        (instance ?M Milk)
        (patient ?C ?M))
    (exists (?PH ?D ?H ?L)
        (and
            (measure ?M
                (MeasureFn ?PH PHValue))
            (instance ?D Decreasing)
            (subProcess ?D ?C)
            (patient ?D ?PH)
            (holdsDuring
                (BeginFn
                    (WhenFn ?D))
                (equal ?PH ?H)
                (approximateValue ?H 6.5))
            (holdsDuring
                (EndFn
                    (WhenFn ?D))
                (equal ?PH ?L)
                (approximateValue ?L 4.5)))))
Food.kif 3226-3247
(=>
    (instance ?AR AcidRainfall)
    (exists (?RAIN ?PH)
        (and
            (instance ?RAIN Water)
            (patient ?AR ?RAIN)
            (measure ?RAIN
                (MeasureFn ?PH PHValue))
            (lessThan ?PH 5.0))))
Geography.kif 2509-2517


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