DOI: 10.1109/date.2004.1268859
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Abstract: The paper presents a method for translating Boolean circuits to CNF by identifying trees of ITE operators, where each ITE has fanout count of 1, and representing every such tree with a single set of equivalent CNF clauses without intermediate variables for ITE outputs, except for the tree output. This not only eliminates intermediate variables, but also reduces the number of clauses, compared to conventional translation to CNF, where each ITE is assigned an output variable and is represented with a separate s…

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