The ordinals of the systems of second order arithmetic with the provably Δ 2 1 -comprehension axiom and with the Δ 2 1 -comprehension axiom respectively

The ordinals of the systems of second order arithmetic with the provably Δ 2 1 -comprehension axiom and with the Δ 2 1 -comprehension axiom respectively
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分别具有可证明 Δ 2 1 -推导式公理和 Δ 2 1 -推导式公理的二阶算术系统的序数

DOI:
10.4099/jjm1924.41.0_1
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发表时间:
1973
期刊:
Japanese journal of mathematics :transactions and abstracts
影响因子:
--
通讯作者:
M. Yasugi
M. Yasugi
中科院分区:
--
文献类型:
--
作者:
G. Takeuti;M. Yasugi

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定义 1.15。以 G L C 作为逻辑基础的树形形式的二阶算术证明(精确定义参见[5])(包括替换作为推理规则之一)如果满足以下条件,则称为(3-)可约。
Definition 1.15. A proof of second order arithmetic in the tree form formulation with G L C as its logical basis (see [5] for the precise definition) (Including substitution as one of the rules of inference) is called (3-) reducible if it satisfies the following.
Ω 规则的完整割消除定理
DOI: --
发表时间: --
期刊: The Bulletin of Symbolic Logic
影响因子: --
作者:
Sugiura;K;Nakanishi;H;鈴木雅子・境一三;Ryota Akiyoshi and Grigori Mints
通讯作者: Ryota Akiyoshi and Grigori Mints