INSTRUCTIONS: Determine whether the following symbolized argument is valid or invalid by identifying the form of each from the last section of Hurley chapter 6 (ensure to match the abbreviations-MODUS PONENS, DS, etc., to the fallacies named; Hint if there is a wedge, look for an argument form with a wedge; if there's a horseshoe, do likewise; etc.). In some cases the argument can be better identified if you use doublé negation or by changing the ordering of the premises. If the argument form is not one of the named valid forms in chapter 6.6, then it is invalid: -A/~AVJ // J O HYPOTHETICAL SYLLOGISM-valid. O AC-invalid. DS-invalid. O Invalid. MODUS PONENS-valid.
