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Let X be the set of final alternatives. Let \(\mathcal {B}\) be the family of non-empty subsets of X, and let us call its element an opportunity set.

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Choice of Opportunity

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  • 发表日期：

    2025年

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  • Takashi Hayashi

摘要

Let X be the set of final alternatives. Let \(\mathcal {B}\) be the family of non-empty subsets of X, and let us call its element an opportunity set.