But before using truth tables to evaluate arguments, we need to say something about the sort of conventions that we will adopt in constructing them. A truth table, then, must have 2 n rows, where n is the number of statement letters in the symbolized argument. If Aristotle is a philosopher, then Aristotle is a logician. Aristotle is a philosopher. Therefore, Aristotle is a logician.
L Order the terms in the truth table in the same order in which they appear in the argument.
Thus, for our example, there are two terms. The 'P' term is listed before the 'L' term. It is also important to generate truth value assignments in a uniform way. This will allow for the quick and consistent construction of truth tables. Moreover, it will facilitate the comparison of your truth tables with that of others.