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arXiv math/9502205math.LO
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关于Solovay模型的Spector超幂

On a Spector ultrapower of the Solovay model

Vladimir Kanovei, Michiel van Lambalgen

摘要:

证明了可数Solovay模型$\gM$(其中所有实数集都是勒贝格可测的)的Spector-like超幂扩张$\gN$等于泛型扩张$\gM[\al]$中所有实数集的可构造集合,其中$\al$是$\gM.$上的随机实数。证明涉及Solovay模型中的几乎处处均匀化定理。

英文摘要:

We prove that a Spector--like ultrapower extension $\gN$ of a countable Solovay model $\gM$ (where all sets of reals are Lebesgue measurable) is equal to the set of all sets constructible from reals in a generic extension $\gM[\al]$ where $\al$ is a random real over $\gM.$ The proof involves an almost everywhere uniformization theorem in the Solovay model.

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