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Determine Whether the Following Argument Is Valid prqrq¬r\begin{array}{l}p \rightarrow r \\q \rightarrow r \\q \vee \neg r \\\hline\end{array}

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Determine whether the following argument is valid:


prqrq¬r\begin{array}{l}p \rightarrow r \\q \rightarrow r \\q \vee \neg r \\\hline\end{array}
¬p\therefore \neg p

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Not valid:...

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