Killing Luzin and Sierpi\'nski sets

by Judah and Shelah. [JdSh:478]
Proc American Math Soc, 1994
We will kill the old Luzin and Sierpinski sets in order to build a model where U(Meager) = U(Null)= aleph_1 and there are neither Luzin nor Sierpinski sets. Thus we answer a question of J. Steprans, communicated by S. Todorcevic on route from Evans to MSRI.

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