Proper forcing and $L({mathbb R})$
Proper forcing and $L({mathbb R})$
复制标题
适当的强制和$L({mathbb R})$
DOI:
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发表时间:
2000
期刊:
影响因子:
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通讯作者:
J. Zapletal
中科院分区:
文献类型:
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作者:
I. Neeman;J. Zapletal
We present two ways in which the model $L({mathbb R})$ is canonical assuming the existence of large cardinals. We show that the theory of this model, with {em ordinal} parameters, cannot be changed by small forcing; we show further that a set of ordinals in $V$ cannot be added to $L({mathbb R})$ by small forcing. The large cardinal needed corresponds to the consistency strength of $AD^{L({mathbb R})}$; roughly $omega$ Woodin cardinals.