Common Forms and Quantifiers

Test the validity of the following argument and click on the correct answer.
The argument is a rather direct example of a common valid model (Modus Ponens, Modus Tollens) or a common fallacy (Fallacy of the Converse, Fallacy of the Inverse) in its universal form. You should be able to classify the argument as valid or invalid by recognizing the form. The "Get a clue" link shows a brief proof.

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Test the validity of the following argument.
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Copyright 2012 James Wooland.
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