PHIL 210 Study Guide - Quiz Guide: Modus Ponens, Internal Fixation, Modus Tollens

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An argument in the form of modus tollens, with a false conclusion. If abigail wants to apply for the canadian forces, she must have volunteered in the past. Abigail has not volunteered in the past. Therefore, she does not want to apply for the canadian forces. An instance of denying the antecedent with a true conclusion. If i want the new iphone x, i must take extra hours at work. I do not want the new iphone x. Therefore, i did not take extra hours at work. A valid argument with a true conclusion that is not sound. If p then q if i have wings, then i can fly to the moon. Therefore q therefore, i can fly to the moon. Simplification: p and q, therefore, p, amanda and alex both want to quit their jobs and become circus performers, therefore, amanda wants to become a circus performer.