Determine whether each argument is valid or invalid. Give reasons for your answer. (a) p ? q ~q ? ~p valid by direct reasoning valid by indirect reasoning valid by the law of the excluded middle invalid by the fallacy of the converse invalid by the fallacy of the inverse (b) p ? q q ? p valid by direct reasoning valid by indirect reasoning valid by the law of the excluded middle invalid by the fallacy of the converse invalid by the fallacy of the inverse
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This argument is valid by direct reasoning because if we assume ~q to be true, then P must also be true. Show more…
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