A necessary truth is a statement that is true in all possible worlds and cannot be false. It is a proposition that is true by virtue of the meaning of the terms involved, regardless of empirical evidence or personal opinion. Examples include mathematical truths like 2+2=4 and logical principles like the law of noncontradiction.

law because lawn has 4 letters and law has 3

common law; ( case law)

statutory law

Administrative law

court rules

constitutional law

This is too general of a question because law is too specialized of a course. There is criminal law, civil law, probate law, corporate law, patent law, family law, contract law and the list goes on and on.

Statue Law