31 Jan
2020
31 Jan
'20
10:46 a.m.
For the Square Peg Problem https://en.wikipedia.org/wiki/Inscribed_square_problem, if the curve is piecewise smooth, the argument shows that there is an odd number of inscribed squares (generically). https://www.ams.org/notices/201404/rnoti-p346.pdf James On Wed, Jan 29, 2020 at 2:45 PM James Propp <jamespropp@gmail.com> wrote:
What are people’s favorite examples of existence proofs that show that a set is not empty by showing that its cardinality is odd?
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-- James