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Jul 19, 2013 at 4:00 comment added Andreas Blass In addition, except for the first sentence, it doesn't make sense. Groups are not programs, nor are Turing machines isomorphic to subsets of permutation groups. (The MO software only allows me to downvote the answer once.)
Jul 18, 2013 at 20:23 comment added András Bátkai This does not seem to address the question.
Jul 18, 2013 at 20:14 review First posts
Jul 18, 2013 at 20:23
Jul 18, 2013 at 19:57 history answered Phil CC BY-SA 3.0