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11 lines
641 B
11 lines
641 B
\item \self SAT solvers usually require input formulas to be in
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\emph{Conjunctive Normal Form} (CNF). In the following list, tick
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all items that conform to CNF.
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\begin{itemize}
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\item[$\square$] A formula $\phi$ that consists of a conjunction of clauses $c_1, c_2, \ldots, c_n$.
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\item[$\square$] A formula $\phi$ that consists of a disjunction of clauses $c_1, c_2, \ldots, c_n$.
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\item[$\square$] A formula $\phi$ that consists of a conjunction of cubes $c_1, c_2, \ldots, c_n$.
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\item[$\square$] A formula $\phi$ that consists of a disjunction of cubes $c_1, c_2, \ldots, c_n$.
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\item[$\square$] A literal $l$.
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\end{itemize}
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