 This definition still has the equivalent of clause (ii) above, and therefore requires the belief that is certain for the subject be the one that is most highly justified for her. But the second definition appears to be more successful in requiring that p be justified to a significant degree. Now, believing that p must not only be more justified for the subject than withholding p, it must also be more justified than withholding with respect to any other proposition. There are many propositions that we are capable of entertaining—e.g., the proposition that the number of people alive at this precise moment is even—where there is not the slightest reason for thinking them to be either true or false (though, of course, they must be one or the other). In fact, given the perfect lack of evidence with respect to propositions of this sort, Chisholm’s definition may set the standard for certainty too high, for it is hard to see how there could be any proposition one is more justified in believing than one is in withholding belief regarding, say, the parity of the number of people alive at this very moment.