Satisfiability problem

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(SAT). Find a truth assignment to logical propositions such that a (given) collection of clauses is true (or ascertain that at least one clause must be false in every truth assignment). This fundamental problem in computational logic forms the foundation for NP-completeness. When SAT is in conjunctive normal form and may not be satisfiable, we define the problem of maximizing the number of true clauses as MAXSAT.

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