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when toggle format what by license comment
Apr 13, 2011 at 23:22 comment added Donu Arapura OK, perhaps it only confirms the "only if" part when $n>2$.
Apr 13, 2011 at 23:09 comment added Minhyong Kim Hmm. Why does this confirm the degree 1 bit?
Apr 13, 2011 at 22:48 history answered Donu Arapura CC BY-SA 3.0