On the complexity of input/output logic

被引:10
|
作者
Sun, Xin [1 ,2 ]
Robaldo, Livio [3 ]
机构
[1] John Paul II Catholic Univ Lublin, Lublin, Poland
[2] Sun Yat Sen Univ, Guangzhou, Guangdong, Peoples R China
[3] Univ Luxembourg, Luxembourg, Luxembourg
关键词
Input/output logic; Decidability; Complexity; Deontic logic; Norm-based semantics; DYNAMIC LOGIC; PERMISSION;
D O I
10.1016/j.jal.2017.03.002
中图分类号
TP18 [人工智能理论];
学科分类号
081104 ; 0812 ; 0835 ; 1405 ;
摘要
Input/output logic is a formalism in deontic logic and normative reasoning. Unlike deontic logical frameworks based on possible-world semantics, input/output logic adopts norm-based semantics in the sense of [13], specifically operational semantics. It is well-known in theoretical computer science that complexity is an indispensable component of every logic. So far, previous literature in input/output systems focuses on proof theory and semantics, while neglects complexity. This paper adds the missing component by giving the complexity results of main decision problems in input/output logic. Our results show that input/output logic is coNP hard and in the 2nd level of the polynomial hierarchy. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码:69 / 88
页数:20
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