Interactive unawareness revisited

• 成果类型: Article
• 署名作者: Halpern, Joseph Y.; Rego, Leandro Chaves
• 署名单位: Universidade Federal de Pernambuco; Cornell University
• 刊物名称: GAMES AND ECONOMIC BEHAVIOR
• ISSN/ISSBN: 0899-8256
• DOI: 10.1016/j.geb.2007.01.012
• 发表日期: 2008
• 页码: 232-262
• 关键词: interactive epistemology; awareness; Modal logic; Axiomatization

摘要

We analyze a model of interactive unawareness introduced by Heifetz, Meier and Schipper. We consider two axiomatizations for their model, which capture different notions of validity. These axiomatizations allow us to compare the Heifetz et al. approach to both the standard (S5) epistemic logic and two other approaches to unawareness: that of Fagin and Halpern and that of Modica and Rustichini. We show that the differences between the Heifetz et al. approach and the others are mainly due to the notion of validity used and the fact that the Heifetz et al. approach is based on a 3-valued propositional logic. (C) 2007 Elsevier Inc. All rights reserved.