Semi-Cohen Versus Cohen Algebras
Logic
2008-02-03 v1
Abstract
We show that there are semi-Cohen Boolean algebras which cannot be completely embedded into Cohen Boolean algebras. Using the ideas from this proof, we give a simpler argument for a theorem of S. Koppelberg and S. Shelah, stating that there are complete subalgebras of Cohen algebras which are not Cohen themselves.
Cite
@article{arxiv.math/9411208,
title = {Semi-Cohen Versus Cohen Algebras},
author = {Jindřich Zapletal},
journal= {arXiv preprint arXiv:math/9411208},
year = {2008}
}