An omniscience principle, the König Lemma and the Hahn-Banach theorem

An omniscience principle, the König Lemma and the Hahn-Banach theorem
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全知原理、国王引理和哈恩-巴纳赫定理

DOI:
10.1002/malq.19900360307
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发表时间:
1990
期刊:
Math. Log. Q.
影响因子:
--
通讯作者:
H. Ishihara
H. Ishihara
中科院分区:
--
文献类型:
--
作者:
H. Ishihara

文献摘要

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相似文献

文章讨论了柯尼希引理和哈恩-巴拿赫定理以及海涅-波莱尔原理的各个方面。作者探讨了海涅-博雷尔原则是如何被认为是一个较低限度的全知原则(LLPO)。作者还用构造性数学证明了Hahn-Banach定理。
The article discusses the aspects of the König lemma and the Hahn-Banach theorem, as well as the Heine-Borel principle. The author looks into how the Heine-Borel principle is considered to be a lesser limited principle of omniscience (LLPO). The author also proves the Hahn-Banach theorem using constructive mathematics.