Talk:Multiple edges

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Mathematics rating:
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 Field:  Discrete mathematics

Related to digons?[edit]

"A planar graph remains planar if an edge is added between two vertices already joined by an edge; thus, adding multiple edges preserves planarity." Isn't this similar to how adding digon faces to a polyhedron doesn't make any difference to the polyhedron's external appearance? Double sharp (talk) 10:18, 24 July 2012 (UTC)