来自《耶鲁大学开放课程：博弈论 第18集 第18集》
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what we want to rule out are those Nash equilibria我们需要排除哪些 -
that instruct players down the tree to无法使参与人在子博弈中 -
play in sub-games according to strategies进入纳什均衡 -
that are not Nash equilibria.的纳什均衡 -
Say it again, we want to rule out those Nash equilibria再说一遍 我们希望能排除那些 -
that instruct people way down the tree to无法指导参与人在子树图中 -
play according to something which is not a Nash equilibrium.进入纳什均衡的纳什均衡 -
We want our new notion to say:新的定义是 -
wherever you find yourself in a tree,不管你在哪里 -
play Nash equilibrium and that's exactly都能达到纳什均衡 -
what the definition's going to say.定义就是这么说的 -
So a Nash equilibrium,如果纳什均衡