作者: Joseph Y. Halpern , Yoram Moses
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摘要: We show how counterfactuals can be added to the framework of knowledge-based programs Fagin, Halpern, Moses, and Vardi [1995, 1997]. that counter-factuals allow us capture in a natural way notions like minimizing number messages are sent, whereas attempts formalize these without lead some rather counterintuitive behavior. also with subgame-perfect equilibria games perfect information.