 So far, we have considered the two components of the first premise of Joyce’s accuracy argument for Probabilism:  Credal Veritism  and  Joycean Inaccuracy.  We have left the former intact, but we have seen concerns with the latter, and we have considered arguments for a stronger claim,  Brier Inaccuracy,  though these also face difficulties. In this section, we move from the account of epistemic disutility on which the argument is based to the decision-theoretic principle to which we appeal in order to derive Probabilism from this account. Let’s recall the version of the principle to which Joyce appeals in his original paper: