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There is a special form for boolean formulas called "Conjunctive Normal Form" (CNF). A problem in this form consists of clauses connected with and operators, where each clause only contains variables connected with or operators. The variables can appear negated, but only variables can be directly negated, something like !(a && b) is not allowed. An example boolean formula in CNF form is:

el: "#app",

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Dave Rennie has been named the new coach of the All Blacks and charged with taking New Zealand to a fourth World Cup triumph in Australia next year.

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