Sat, 20 Aug 2011 23:35:30 +0200 refined Graph implementation: more abstract/scalable Graph.Keys instead of plain lists -- order of adjacency is now standardized wrt. Key.ord;
wenzelm [Sat, 20 Aug 2011 23:35:30 +0200] rev 44338
refined Graph implementation: more abstract/scalable Graph.Keys instead of plain lists -- order of adjacency is now standardized wrt. Key.ord;
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