Book, Paragraph

1     II,  2 |     look and see if anything untrue has been assumed as true
2     II,  8 |       while if the latter be untrue, so is the former". Likewise,
3    III,  6 |    true also of some, and if untrue of all, it is untrue of
4    III,  6 |      if untrue of all, it is untrue of some. Especially handy
5      V,  3 |  name of the subject will be untrue of anything to which such
6     VI,  1 | always "Is so and so true or untrue?": for whenever we argue
7     VI,  1 |  belong, we declare it to be untrue. If, again, he has failed
8    VII,  5 |     show that the formula is untrue of any one of the things
9   VIII,  14|    that if the conclusion be untrue, some one of the premisses