Constructive Zermelo-Fraenkel set theory and the limited principle of omniscience
Constructive Zermelo-Fraenkel set theory and the limited principle of omniscience
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构造性策梅洛-弗兰克尔集合论和全知有限原理
DOI:
10.1016/j.apal.2013.08.001
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发表时间:
2014
影响因子:
0.8
通讯作者:
Rathjen M
中科院分区:
文献类型:
--
作者:
Rathjen M
In recent years the question of whether adding the limited principle of omniscience, LPO, to constructive Zermelo–Fraenkel set theory, CZF, increases its strength has arisen several times. As the addition of excluded middle for atomic formulae to CZF results in a rather strong theory, ie much stronger than classical Zermelo set theory, it is not obvious that its augmentation by LPO would be proof-theoretically benign. The purpose of this paper is to show that CZF+ RDC+ LPO has indeed the same strength as CZF, where RDC stands for relativized dependent choice. In particular, these theories prove the same Π 2 0 theorems of arithmetic.
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影响因子:
4.9
作者:
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通讯作者:
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DOI:
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1996
期刊:
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影响因子:
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通讯作者:
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DOI:
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发表时间:
2005
期刊:
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影响因子:
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通讯作者:
M. Rathjen