Wellfoundedness proof with the maximal distinguished set.
Wellfoundedness proof with the maximal distinguished set.
复制标题
最大可区分集的有据证明。
DOI:
10.1007/s00153-022-00840-8
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发表时间:
2022
期刊:
影响因子:
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通讯作者:
Toshiyasu Arai
中科院分区:
文献类型:
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作者:
横山啓太;稲葉 寿;Toshiyasu Arai
In Arai (An ordinal analysis of a single stable ordinal, submitted) it is shown that an ordinalis an upper bound for the proof-theoretic ordinal of a set theory. In this paper we show that a second order arithmeticproves the wellfoundedness up tofor eachN. It is easy to interpretin.