Dominant strategy
The dominant strategy is a strategy that is always no worse than any other strategy, regardless of the opponent's choice of strategy and random events.
If a strategy is dominated by another, it does not make sense to even consider it.
If the opponent is rational, you can reject the strategy by the algorithm:
If the opponent is not rational, there is no reason to suppose that he will not choose one of the "dominated" strategies, so you can not use that way.
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