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SUMMARY:An automorphism of a model of set theory that moves a countable or
 dinal down but does not move any natural number down - Zach McKenzie (Univ
 ersity of Cambridge)
DTSTART:20120302T140000Z
DTEND:20120302T150000Z
UID:TALK36224@talks.cam.ac.uk
CONTACT:Jonathan Nelson
DESCRIPTION:See title
LOCATION:MR13
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