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Continue to ChatA universal finite set, CUNY Logic Workshop, November 2017 https://jdh.hamkins.org/a-universal-finite-set-cuny-logic-workshop-november-2017/
A universal finite set, CUNY Logic Workshop, November 2017 https://jdh.hamkins.org/a-universal-finite-set-cuny-logic-workshop-november-2017/