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Results tagged with co.combinatorics
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user 158
Enumerative combinatorics, graph theory, order theory, posets, matroids, designs and other discrete structures. It also includes algebraic, analytic and probabilistic combinatorics.
12
votes
Accepted
Finding monochromatic rectangles in a countable coloring of $R^{2}$
This is equivalent to CH.
Quoting "Problems and Theorems in Classical Set Theory" by Komjath and Totik, chapter 16, Continuum hypothesis:$\DeclareMathOperator{\dist}{dist}$
CH holds if and only if th …
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