Definable well-orders of H(ω2) and GCH
Definable well-orders of H(ω2) and GCH
复制标题
H(ω2) 和 GCH 的可定义良阶
DOI:
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发表时间:
2012
期刊:
影响因子:
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通讯作者:
S. Friedman
中科院分区:
文献类型:
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作者:
D. Asperó;S. Friedman
Abstract Assuming 2ℵ0 = ℵ1 and 2ℵ1 = ℵ2, we build a partial order that forces the existence of a well-order of H(ω2) lightface definable over ⟨H(ω1), ∈⟩ and that preserves cardinal exponentiation and cofinalities.