Trees are connected acyclic graphs, so knowledge could be both. ;) | Hacker News

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jlgreco on Aug 31, 2012 | parent | context | favorite | on: Show HN: Most Wikipedia articles lead to the same ...

Trees are connected acyclic graphs, so knowledge could be both. ;)

tsahyt on Sept 1, 2012 [–]

Yes but graphs can very well be cyclic, so eventually a path from a node could lead back to the node itself.

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