This is a proposition which is again quite certainly true; and, in order to compare it with, there is, I think, no need to adopt any further convention for expressing it, since the questions whether it is or is not different from, and whether does or does not follow from it, will obviously depend on the same questions with regard to the two propositions, with regard to the particular relational property, entails and entails Now what I maintain with regard to and is that, whereas is true, is false.