 The problem with this interpretation is that it does not fit Swyneshed’s rules, which were accepted by some authors as a viable alternative to Burley’s approach. As the rules stand, the set of all answers cannot be understood as a description of a possible world, because it need not be consistent. The set of answers to relevant propositions is consistent even according to Swyneshed’s rules, but understanding that set as describing a possible world runs into the difficulty that that set does not expand from the logical closure of the positum, and thus it does not describe any possible world more fully than the positum alone.