Adhering to logical form and avoiding fallacies, we repeat for emphasis, is only a means to the ends of justice, but logical form and avoiding fallacies are nonetheless critical tools of argument. They are the implements of persuasion. They form the imprimatur that gives legitimacy and respect to judicial decisions.

Ruggero J. Aldisert, Agatha D. Aldisert, Logic for Lawyers- A Guide …, loc. 146