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  Graph

Sigma KEE - Graph
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グラフ
グラフの Clas は、グラフが GraphArcs によって接続 された GraphNode のセットであると理解される。注1:この Class には、接続されたグラフのみが含ま れる。 すなわち、グラフは、任意の2つの間にあるGraphPath内にある。注2:すべての Graph には 少なくとも2つの GraphArcs と 3つの GraphNodes が含まれている必要がある。
Relationships      
Parents 命題 Propositions are Abstract entities that express a complete thought or a set of such thoughts. As an example, the formula '(instance Yojo Cat)' expresses the Proposition that the entity named Yojo is an element of the Class of Cats. Note that propositions are not restricted to the content expressed by individual sentences of a Language. They may encompass the content expressed by theories, books, and even whole libraries. It is important to distinguish Propositions from the ContentBearingObjects that express them. A Proposition is a piece of information, e.g. that the cat is on the mat, but a ContentBearingObject is an Object that represents this information. A Proposition is an abstraction that may have multiple representations: strings, sounds, icons, etc. For example, the Proposition that the cat is on the mat is represented here as a string of graphical characters displayed on a monitor and/or printed on paper, but it can be represented by a sequence of sounds or by some non-latin alphabet or by some cryptographic form.
Children 有向グラフThe Class of directed graphs. A directed graph is a Graph in which all GraphArcs have direction, i.e. every GraphArc has an initial node (see InitialNodeFn) and a terminal node (see TerminalNodeFn).
 マルチグラフThe Class of multigraphs. A multigraph is a Graph containing at least one pair of GraphNodes that are connected by more than one GraphArc.
 疑似グラフThe Class of pseudographs. A pseudograph is a Graph containing at least one GraphLoop.


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