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2SAT2-Satisfiability (Boolean satisfiability problem expressed in 2CNF form)
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The problem of 2-satisfiability presents a striking analogy with the random graph process.
disjunction]2]) corresponds to the 2-SATISFIABILITY problem, which is well-known to be tractable [Garey and Johnson 1979].
With these definitions, CSP([Gamma] [union] [Delta]) is equivalent to the standard 2-SATISFIABILITY problem, and hence [CSP.
c], provided maximum 2-satisfiability does not admit a randomized polynomial time approximation schema.