Skills to be acquired in this tutorial:
To learn how to symbolize arguments, and how to judge whether they might be invalid using truth-table methods.
Why this is useful:
We wish to appraise arguments, to do this we have to symbolize them first. Judging the invalidity of arguments by truth-table methods is not particularly important, but it does help to develop skills involving truth and lists of formulas.
Bergmann The Logic Book Section 3.5.