Donder's Version of Revised Countable Support
Logic
2009-09-25 v1
Abstract
Shelah introduced the revised countable support (RCS) iteration to iterate semiproperness. This was an endpoint in the search for an iteration of a weak condition, still implying that aleph1 is preserved. Dieter Donder found a better manageable approach to this iteration, which is presented here.
Cite
@article{arxiv.math/9207204,
title = {Donder's Version of Revised Countable Support},
author = {Ulrich Fuchs},
journal= {arXiv preprint arXiv:math/9207204},
year = {2009}
}