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Sep 15, 2016 at 21:50 vote accept Julia Williams
Sep 15, 2016 at 21:41 answer added Ashutosh timeline score: 11
Sep 15, 2016 at 21:19 comment added Joel David Hamkins Nice question! My article on upward closure has further remarks on amalgamation and non-amalgamation: jdh.hamkins.org/….
Sep 15, 2016 at 20:49 history asked Julia Williams CC BY-SA 3.0