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when toggle format what by license comment
Nov 28, 2011 at 14:09 comment added Laurent Moret-Bailly Of course that's a good question; I don't know the answer.
Nov 28, 2011 at 14:07 history edited Laurent Moret-Bailly CC BY-SA 3.0
added 1011 characters in body
Nov 28, 2011 at 13:46 comment added user19475 OK, so are there also counterexamples for $n > 1$?
Nov 28, 2011 at 13:41 history answered Laurent Moret-Bailly CC BY-SA 3.0