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KB Term:  Term intersection
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Sigma KEE - BeginNodeFn
BeginNodeFn

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


(documentation BeginNodeFn ChineseLanguage "这是一个 UnaryFunction，它把一个 GraphPath 联系到 GraphPath 开端的 GraphNode。注：跟 InitialNodeFn 不同 (把一个 GraphArc 和一个 GraphNode 联系)， BeginNodeFn 是一个总体的函数 - 每个 GraphPath 都有它的开端。") chinese_format.kif 2362-2364
(documentation BeginNodeFn EnglishLanguage "A UnaryFunction that maps a GraphPath to the GraphNode that is the beginning of the GraphPath. Note that, unlike InitialNodeFn (which relates a GraphArc to a GraphNode), BeginNodeFn is a total function - every GraphPath has a beginning.") Merge.kif 5591-5594
(domain BeginNodeFn 1 GraphPath) Merge.kif 5587-5587 domain BeginNodeFn, 1 and GraphPath
(instance BeginNodeFn TotalValuedRelation) Merge.kif 5586-5586 instance BeginNodeFn and TotalValuedRelation
(instance BeginNodeFn UnaryFunction) Merge.kif 5585-5585 instance BeginNodeFn and UnaryFunction
(range BeginNodeFn GraphNode) Merge.kif 5588-5588 range BeginNodeFn and GraphNode
(relatedInternalConcept BeginNodeFn InitialNodeFn) Merge.kif 5589-5589 relatedInternalConcept BeginNodeFn and InitialNodeFn

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


(format ChineseLanguage BeginNodeFn "%1 的开端") chinese_format.kif 765-765
(format EnglishLanguage BeginNodeFn "the beginning of %1") english_format.kif 768-768
(termFormat ChineseLanguage BeginNodeFn "开始节点") domainEnglishFormat.kif 10519-10519
(termFormat ChineseLanguage BeginNodeFn "节点开端函数") chinese_format.kif 766-766
(termFormat ChineseTraditionalLanguage BeginNodeFn "開始節點") domainEnglishFormat.kif 10518-10518
(termFormat EnglishLanguage BeginNodeFn "begin node") domainEnglishFormat.kif 10517-10517

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


(<=>
    (instance ?GRAPH GraphCircuit)
    (exists (?NODE)
        (and
            (equal
                (BeginNodeFn ?GRAPH) ?NODE)
            (equal
                (EndNodeFn ?GRAPH) ?NODE))))		 Merge.kif 5429-5434 instance GraphPath and GraphCircuit GraphNode equal BeginNodeFn GraphPath and GraphNode equal EndNodeFn GraphPath and GraphNode
(=>
    (and
        (distanceOnPath ?DIST ?PATH)
        (pathInSystem ?PATH ?SYS)
        (routeStart ?START ?PATH)
        (routeEnd ?END ?PATH)
        (abstractCounterpart ?GRAPH ?SYS))
    (exists (?S ?BN ?EN)
        (and
            (subGraph ?S ?GRAPH)
            (equal ?BN
                (BeginNodeFn ?GRAPH))
            (equal ?EN
                (EndNodeFn ?GRAPH))
            (abstractCounterpart ?BN ?START)
            (abstractCounterpart ?EN ?END))))		 Transportation.kif 2784-2797
(=>
    (and
        (instance ?GRAPH Graph)
        (instance ?NODE1 GraphNode)
        (instance ?NODE2 GraphNode)
        (graphPart ?NODE1 ?GRAPH)
        (graphPart ?NODE2 ?GRAPH)
        (not
            (equal ?NODE1 ?NODE2)))
    (exists (?ARC ?PATH)
        (or
            (links ?NODE1 ?NODE2 ?ARC)
            (and
                (subGraph ?PATH ?GRAPH)
                (instance ?PATH GraphPath)
                (or
                    (and
                        (equal
                            (BeginNodeFn ?PATH) ?NODE1)
                        (equal
                            (EndNodeFn ?PATH) ?NODE2))
                    (and
                        (equal
                            (BeginNodeFn ?PATH) ?NODE2)
                        (equal
                            (EndNodeFn ?PATH) ?NODE1)))))))		 Merge.kif 5303-5323


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