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when toggle format what by license comment
Jun 18, 2020 at 8:32 history edited CommunityBot
Commonmark migration
Sep 1, 2015 at 22:14 comment added Benjamin Dickman I explored this problem once with a mathematical proof / proving class (directed at undergraduate math education majors). As far as number 2: Proving (in some rigorous way) that this is impossible for $n = 5$ is not so easy! (It should be possible for $n = 1$ and $4$, and for $n \geq 6$...)
Sep 1, 2015 at 7:18 history answered JRN CC BY-SA 3.0