"1.
The rule of recognition in any legal system defines the identifying test of constitutional validity. The rule serves three purposes
1) Establishing a check for valid laws
2) Conferring validity in the applicable legal systems
3) Unifying laws
The rule of change of law prescribes how laws and regulations are to be altered.
Under the rule of adjudication, the society determines when a rule has been violated and prescribes a remedy to it."