use indirect truth tables to determine whether each of the following arguments is valid. If the argument is invalid, specify a counterexample.
-(M • N) ? (O • P)
(M • O) ? (Q $ \lor $?P)
R ? (Q ? N) / (?M • ?N) $ \lor $ (O • P)

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The Answer of use indirect truth tables to determine whether each of the following arguments is valid. If the argument is invalid, specify a counterexample.
-(M • N) ? (O • P)
(M • O) ? (Q $ \lor $?P)
R ? (Q ? N) / (?M • ?N) $ \lor $ (O • P)

Use Indirect Truth Tables to Determine Whether Each of the Following