The first is that it is possible for the subject to be justified by believing a proposition that is false (121). An example of this might be running a test, but it produced a false positive or false negative. Test results would be considered justification for believing a proposition, but the test itself may be wrong. The second point is the fact that if a subject is justified in believing one proposition and a second proposition is inferred from the first, then the second proposition is also justified (121). An example would be me saying it's raining outside. I am right to believe this because I looked out the window and saw rain. I can deduce from this proposition that it is humid outside. Therefore, I have the right to say that it is humid outside because I have the right to say that it is