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7 lines
451 B
7 lines
451 B
\item \ifassignmentsheet \points{5} \fi
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Use the lazy encoding approach to check whether the formula $\varphi$ in $\EUF$ is satisfiable.
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\begin{align*}
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\varphi= & (\clause{(a=b); (a=f(a)); (b=f(a))}) \land (\clause{\lnot (a=b); (a=f(a))})~\land \\
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& (\clause{\lnot (a=f(a)); (b=f(a))}) \land (\clause{(b=f(a)); (d=a)})~\land \\
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& (\clause{\lnot (b=f(a)); (a=f(a))}) \land (\clause{\lnot (d=a); \lnot (a=f(a))})
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\end{align*}
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