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Theoretical question deal with topics that do not generally have immediate practical uses. Please be careful when using this tag: your question may be more appropriate for the Computer Science Stack Exchange site.

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Others have commented on this, but I will try to write out an answer giving my point of view. I like Robert Harvey answer, and the comments to his answer, and I would like to expand on those. I th …
answered Jan 24 '14 by Lorenzo Dematté