On theories of bounded arithmetic for NC1

被引:5
|
作者
Jerabek, Emil [1 ]
机构
[1] Acad Sci Czech Republ, Inst Math, CR-11567 Prague 1, Czech Republic
关键词
Bounded arithmetic; Circuit complexity; Propositional translation;
D O I
10.1016/j.apal.2010.10.001
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We develop an arithmetical theory VNC*1 and its variant (VNC) over bar (1)(*), corresponding to "slightly nonuniform" NC1. Our theories sit between VNC1 and VL, and allow evaluation of log-depth bounded fan-in circuits under limited conditions. Propositional translations of Sigma(B)(0)(L-(VNC*1) over bar)-formulas provable in L (VNC) over bar (1)(*) admit L-uniform polynomial-size Frege proofs. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:322 / 340
页数:19
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