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when toggle format what by license comment
Jan 8, 2015 at 17:51 comment added Huangjun Zhu Thank you very much for the detailed explanation. Still the reasoning is a bit beyond my current understand. Is there a reference for the relevant results?
Jan 8, 2015 at 17:48 vote accept Huangjun Zhu
Jan 4, 2015 at 16:00 history edited Derek Holt CC BY-SA 3.0
added 49 characters in body
Jan 4, 2015 at 12:01 history edited Derek Holt CC BY-SA 3.0
Considered case $n\ge 2$.
Jan 1, 2015 at 10:29 history answered Derek Holt CC BY-SA 3.0