In the following proof, which justification is correct for line 3? $\begin{array}{llcc}
\text { (1) $ \mathrm{Ca} \supset(x)(\mathrm{D} x \supset \mathrm{E} x) $ } && \text { Premise } \
\text { (2) $ \mathrm{Da} \cdot \mathrm{Ca} $ } & \text {$/ \mathrm{Ea}$ } & \text {\quad\quad \quad\quad \quad\quad Premise/Conclusion } \
\text {(3) $ \mathrm{Ca} $ } &\
\end{array}$

Question

In the following proof, which justification is correct for line 3? $\begin{array}{llcc}
  \text { (1) $ \mathrm{Ca} \supset(x)(\mathrm{D} x \supset \mathrm{E} x) $ } && \text { Premise }   \
 \text { (2) $ \mathrm{Da} \cdot \mathrm{Ca} $ } & \text {$/ \mathrm{Ea}$  } & \text {\quad\quad \quad\quad \quad\quad Premise/Conclusion  } \
 \text {(3) $ \mathrm{Ca} $  } &\
\end{array}$

Quizplus · Accepted Answer

The Answer of In the following proof, which justification is correct for line 3? $\begin{array}{llcc}
  \text { (1) $ \mathrm{Ca} \supset(x)(\mathrm{D} x \supset \mathrm{E} x) $ } && \text { Premise }   \
 \text { (2) $ \mathrm{Da} \cdot \mathrm{Ca} $ } & \text {$/ \mathrm{Ea}$  } & \text {\quad\quad \quad\quad \quad\quad Premise/Conclusion  } \
 \text {(3) $ \mathrm{Ca} $  } &\
\end{array}$

In the Following Proof, Which Justification Is Correct for Line