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Petersen graph Nauru graph Graph theory Toroidal graph, Mathematics, purple, blue, angle png
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Heawood graph Graph theory Herschel graph Triangle Diagram, others, angle, triangle, symmetry png
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Butterfly graph Heawood graph Graph theory Vertex, friendship wi, png
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Edge coloring Desargues graph Complete graph Pappus graph, edge, angle, triangle, symmetry png
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Heawood graph Graph theory Symbol Seven deadly sins, symbol, miscellaneous, angle, leaf png
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Graph theory Heawood graph Graph of a function Vertex, col, blue, angle, triangle png
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Complete graph Vertex Complete bipartite graph Graph theory, gap, angle, triangle, symmetry png
