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Continue to ChatModal logics in set theory, NWO grants, 2006 - 2008 https://jdh.hamkins.org/modal-logics-in-set-theory-nwo-grants/
Modal logics in set theory, NWO grants, 2006 - 2008 https://jdh.hamkins.org/modal-logics-in-set-theory-nwo-grants/