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Sigma KEE - FirstFn
FirstFn

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


(documentation FirstFn EnglishLanguage "(FirstFn ?LIST) returns the first item in the List ?LIST. For example, (FirstFn (ListFn Monday Tuesday Wednesday)) would return the value of Monday.") Merge.kif 3116-3118
(domain FirstFn 1 List) Merge.kif 3114-3114 The number 1 argument of first is an instance of list
(instance FirstFn UnaryFunction) Merge.kif 3113-3113 First is an instance of unary function
(range FirstFn Entity) Merge.kif 3115-3115 The range of first is an instance of entity

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


(format ChineseLanguage FirstFn "%1 的 first ") domainEnglishFormat.kif 1012-1012
(format ChineseTraditionalLanguage FirstFn "%1 的 first ") domainEnglishFormat.kif 1011-1011
(format EnglishLanguage FirstFn "the first of %1") domainEnglishFormat.kif 1010-1010
(termFormat ChineseLanguage FirstFn "第一") domainEnglishFormat.kif 23890-23890
(termFormat ChineseTraditionalLanguage FirstFn "第一") domainEnglishFormat.kif 23889-23889
(termFormat EnglishLanguage FirstFn "first") domainEnglishFormat.kif 23888-23888

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


(=>
    (and
        (viewedItemList ?USER ?LIST)
        (instance ?ACCESSING AccessingWebPage)
        (equal
            (FirstFn ?LIST) ?ACCESSING))
    (not
        (exists (?ACCESSING2)
            (and
                (instance ?ACCESSING2 AccessingWebPage)
                (agent ?ACCESSING2 ?USER)
                (earlier
                    (WhenFn ?ACCESSING2)
                    (WhenFn ?ACCESSING))))))
UXExperimentalTerms.kif 971-985

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


(=>
    (and
        (equal ?A
            (ListSumFn ?L))
        (greaterThan
            (ListLengthFn ?L) 1))
    (equal ?A
        (AdditionFn
            (FirstFn ?L)
            (ListSumFn
                (SubListFn 2
                    (ListLengthFn ?L) ?L)))))
Merge.kif 3147-3157
(=>
    (and
        (instance ?LIST List)
        (not
            (equal ?LIST NullList)))
    (equal
        (FirstFn ?LIST)
        (ListOrderFn ?LIST 1)))
Merge.kif 3120-3125


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