Sh:504

• Koppelberg, S., & Shelah, S. (1996). Subalgebras of Cohen algebras need not be Cohen. In Logic: from foundations to applications (Staffordshire, 1993), Oxford Univ. Press, New York, pp. 261–275. arXiv: math/9610227 MR: 1428008
• Abstract:
  We give an example of a regular and complete subalgebra of a Cohen algebra which is not Cohen.
• Version 1997-01-09_10 (16p)

@incollection{Sh:504,
 author = {Koppelberg, Sabine and Shelah, Saharon},
 title = {{Subalgebras of Cohen algebras need not be Cohen}},
 booktitle = {{Logic: from foundations to applications (Staffordshire, 1993)}},
 series = {Oxford Sci. Publ.},
 year = {1996},
 pages = {261--275},
 publisher = {Oxford Univ. Press, New York},
 mrnumber = {1428008},
 mrclass = {03E40},
 note = {\href{https://arxiv.org/abs/math/9610227}{arXiv: math/9610227}},
 arxiv_number = {math/9610227}
}