\item \prac \textbf{[2 Point]}
  \begin{enumerate}
    \item $(\forall x \; (\lnot A(x)) \lor (\exists x \; (B(x)) \quad \ent \quad \forall x \; (\lnot A(x) \lor B(x))$
    \item $(\forall x \; (\lnot A(x)) \lor (\exists x \; (B(x)) \quad \ent \quad \exists x \; (\lnot A(x) \lor B(x))$
  \end{enumerate}