The strong soundness theorem for real closed fields and Hilbert’s Nullstellensatz in second order arithmetic
The strong soundness theorem for real closed fields and Hilbert’s Nullstellensatz in second order arithmetic
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实闭域的强稳健性定理和二阶算术中的希尔伯特零值定理
DOI:
10.1007/s00153-003-0206-y
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发表时间:
2004
影响因子:
0.3
通讯作者:
Kazuyuki Tanaka
中科院分区:
文献类型:
--
作者:
Nobuyuki Sakamoto;Kazuyuki Tanaka
ByRCA0, we denote a subsystem of second order arithmetic based on Δ01comprehension and Δ01induction. We show within this system that the real number system R satisfies all the theorems (possibly with non-standard length) of the theory of real closed fields under an appropriate truth definition. This enables us to develop linear algebra and polynomial ring theory over real and complex numbers, so that we particularly obtain Hilbert’s Nullstellensatz inRCA0.