I will show the existence of two Π2 sentences about H(ω2), both of which can separately be forced to hold together with CH (assuming, for one of them, the existence of an inaccessible limit of measurable cardinals), but whose conjunction implies the failure of CH. This solves a well-known problem of Woodin. This is joint work with P. Larson and J. Moore.
On Π<sub>2</sub> maximality and CH
29.04.2010 15:00 - 16:30
Organiser:
KGRC
Location:
SR 101, 2. St., Währinger Str. 25