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Sigma KEE - GraphLoop
GraphLoop(graph loop)

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


(documentation GraphLoop ChineseLanguage "这是一个由 GraphNode 联系着自己的 GraphArc。") chinese_format.kif 2346-2346
(documentation GraphLoop EnglishLanguage "A GraphArc in which a GraphNode is linked to itself.") Merge.kif 5752-5753
(externalImage GraphLoop "http://upload.wikimedia.org/wikipedia/commons/ 2/ 28/ 6n-graph2.svg") pictureList.kif 1791-1791
(subclass GraphLoop GraphArc) Merge.kif 5750-5750 Graph loop is a subclass of graph arc

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


(termFormat ChineseLanguage GraphLoop "图环路") chinese_format.kif 943-943
(termFormat EnglishLanguage GraphLoop "graph loop") english_format.kif 1093-1093

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


(=>
    (and
        (instance ?LOOP GraphLoop)
        (graphPart ?LOOP ?GRAPH))
    (instance ?GRAPH PseudoGraph))
Merge.kif 5711-5715
(=>
    (instance ?LOOP GraphLoop)
    (exists (?NODE)
        (links ?NODE ?NODE ?LOOP)))
Merge.kif 5755-5758

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


(=>
    (and
        (equal
            (InitialNodeFn ?ARC) ?NODE)
        (equal
            (TerminalNodeFn ?ARC) ?NODE))
    (instance ?ARC GraphLoop))
Merge.kif 5764-5768
(=>
    (instance ?GRAPH PseudoGraph)
    (exists (?LOOP)
        (and
            (instance ?LOOP GraphLoop)
            (graphPart ?LOOP ?GRAPH))))
Merge.kif 5704-5709
(=>
    (instance ?GRAPH Tree)
    (not
        (exists (?LOOP)
            (and
                (instance ?LOOP GraphLoop)
                (graphPart ?LOOP ?GRAPH)))))
Merge.kif 5590-5596
(=>
    (links ?NODE ?NODE ?LOOP)
    (instance ?LOOP GraphLoop))
Merge.kif 5760-5762


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