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.









Click here to get a clue

Click "refresh" or "reload" to see another problem like this one.



















































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































Solution

Test the validity of the following argument.
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