So we know that 2 is not dominated, and particularly not dominated by 3, When you delete the dominated strategy of 2 dominating 1, or 1 being dominated, when you delete that and 10, then it is.
我们知道选立场2并不是劣势策略,它并不劣于选立场3,当你剔除劣于策略2的劣势策略1,或者说立场1处于劣势,当你剔除策略1和10之后,2就变成劣势策略了
博弈论课程节选 : 耶鲁公开课