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arXiv math/9612208math.LO
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关于强制迭代的更多信息

More on forcing iteration

Chaz Schlindwein

摘要:

半适当性、半适当性和伪完备性的保持定理对于可数支持迭代以及修正的可数支持迭代成立,尽管“因子引理”对于可数支持版本失败。例子:在CH的地面模型上Namba强迫的可数支撑迭代不增加实数。例如:在CH的地面模式上,由Namba强迫和Cohen强迫建立的可数支持迭代不会崩溃omega_1

英文摘要:

The preservation theorems for semi-properness, hemi-properness, and pseudo-completeness hold for countable support iterations as well as revised countable support iterations, notwithstanding the fact that the "factor lemma" fails for the countable support versions. Example: The countable support iteration of Namba forcing over a ground model of CH does not add reals. Example: A countable support iteration built from Namba forcing and Cohen forcing, over a ground model of CH, does not collapse omega_1

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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