Before revision:  Biol. (2018) . A successful strategyforms a cooperative Nash equilibrium in the presence of implementation errorwhile assuring that the long-term payoff never becomes less than the co-players' regardless of their strategies, when the error rate is small.
After revision:  Biol. (2018) . A successful strategyforms a cooperative Nash equilibrium under implementation error, with assuring that the long-term payoff never becomes less than the co-players' regardless of their strategies, when the error rate is small.