Spencer Unger will continue his series of talks.
Mathematical logic seminar – January/February 2013
Time: 12:00 – 13:20
Room: Wean Hall 7201
Speaker: Spencer Unger
Department of Mathematical Sciences
Carnegie Mellon University
Title: Scales and the Singular Cardinals Hypothesis
(Joint work with Dima Sinapova)
In this series of talks I will present the following recent result which answers a question posed by Woodin in the 80’s.
Assuming that there is a supercompact cardinal it is consistent that the singular cardinals hypothesis (SCH) fails at aleph_omega and there is a bad scale at aleph_omega.