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Results tagged with infinite-combinatorics
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user 7092
Combinatorial properties of infinite sets. This is a corner-point of set theory and combinatorics.
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Self-dual hypergraph on $\omega$
Expanding my comments into an answer: by rephrasing this as a question of constructing a symmetric $\omega\times\omega$ matrix with the same properties, we can give an explicit construction. For conve …
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