Mathematics – Logic
Scientific paper
2004-05-05
J. Symbolic Logic 70, iss. 3 (2005), 914--945
Mathematics
Logic
Scientific paper
10.2178/jsl/1122038920
We present preservation theorems for countable support iteration of nep
forcing notions satisfying ``old reals are not Lebesgue null'' and ``old reals
are not meager''. (Nep is a generalization of Suslin proper.) We also give some
results for general Suslin ccc ideals.
Kellner Jakob
Shelah Saharon
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