The "mirror image rule" states that acceptance must match the terms of the offer exactly. If terms are changed, it becomes a counteroffer.
Federal courts have limited jurisdiction. While diversity of citizenship, federal questions, and amount in controversy are valid bases, the plaintiff's residence alone is not a basis for federal jurisdiction.
The parol evidence rule prevents parties from introducing external evidence that contradicts or adds to the terms of a fully integrated written contract.
Specific intent crimes require the defendant to have a particular purpose or knowledge in addition to the intent to commit the act, while general intent only requires intent to do the act itself.
Battery is an intentional tort that involves harmful or offensive contact with another person without their consent.