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The union of three arcs emanating from a point v is called a
simple triod provided the singleton v is the
intersection of any two of the arcs ; the point v is then
called the top of the simple triod, and the arcs are
called its arms.
Next: shore point
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Previous: simple -od
Janusz J. Charatonik, Pawel Krupski and Pavel Pyrih
2001-11-30