Class Forcing in Class Theory
Class Forcing in Class Theory
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阶级理论中的阶级强迫
DOI:
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发表时间:
2015
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通讯作者:
C. Antos
中科院分区:
文献类型:
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作者:
C. Antos
In this article we show that Morse-Kelley class theory (MK) provides us with an adequate framework for class forcing. We give a rigorous definition of class forcing in a model ((M,mathcal {C})) of MK, the main result being that the Definability Lemma (and the Truth Lemma) can be proven without restricting the notion of forcing. Furthermore we show under which conditions the axioms are preserved. We conclude by proving that Laver’s Theorem does not hold for class forcings.