Fragments of Martin's maximum in generic extensions
Fragments of Martin's maximum in generic extensions
复制标题
DOI:
10.1002/malq.200410101
复制
发表时间:
2004-01-01
影响因子:
0.3
通讯作者:
Yoshinobu, Y
中科院分区:
文献类型:
--
作者:
König, B;Yoshinobu, Y
We show that large fragments of MM, e. g. the tree property and stationary reflection, are preserved by strongly (omega(1) + 1)-game-closed forcings. PFA can be destroyed by a strongly (omega(1) + 1)-game-closed forcing but not by an omega(2)-closed. (C) 2004 WILEY-VCH Verlag GmbH & Co. KGaA. Weinheim.