Question: Given a formula , let be the formula after applying Tseitin's transformation to . is always smaller than the equivalent CNF version of . If

Given a formula , let be the formula after applying Tseitin's transformation to .
is always smaller than the equivalent CNF version of .
If is satisfiable, then is also satisfiable.
If is valid, then is also valid.
Any model of is also a model of .

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