Final answer:
The relevance of the similarities between legal cases is rarely debatable, which is the false statement regarding legal arguments.Therefore, statements 1, 2, and 4 are all true regarding legal arguments.
Step-by-step explanation:
The statement that is not true of legal arguments is: The relevance of the similarities between legal cases is rarely debatable.
Legal arguments often involve showing how one case should be considered analogous to another. Analogical reasoning is often required in decisions involving statutory law. Some legal arguments also appeal to moral reasoning. Therefore, statements 1, 2, and 4 are all true regarding legal arguments.