Skip to main content
4 events
when toggle format what by license comment
Aug 26 at 1:52 comment added Đào Thanh Oai Thank you very much for your answer.
Aug 24 at 17:51 comment added Fedor Petrov Only $n=4$ (and $n=3$ also may be proved by this method).
Aug 24 at 13:58 comment added Đào Thanh Oai Can you fully prove with any $n \ge 4$
Aug 24 at 9:08 history answered Fedor Petrov CC BY-SA 4.0