Justified and Common Knowledge: Limited Conservativity
Justified and Common Knowledge: Limited Conservativity
复制标题
合理且常识:有限的保守性
DOI:
--
复制
发表时间:
2007
期刊:
影响因子:
--
通讯作者:
Evangelia Antonakos
中科院分区:
文献类型:
--
作者:
Evangelia Antonakos
We consider the relative strengths of three formal approaches to public knowledge: "any fool" knowledge by McCarthy (1970), Common Knowledge by Halpern and Moses (1990), and Justified Knowledge by Artemov (2004). Specifically, we show that epistemic systems with the Common Knowledge modality Care conservative with respect to Justified Knowledge systems on formulas ?? Cφ??, where ?, φ, and ?are C-free.