Reality and uncertainty in its legal existence

To check the legal institutions from the knowledge or ignorance of people, law is devided into 2 phases: reality and demonstration, the former is the real area(noumenon); the area that exists is effective regardless the awareness or ignorance of people and demonstrating the attempt in order to be aware of prove realm(phenoumenon). One of the major questions of the philosophy of law is to address this issue. In this article, we investigate the prove area in Islamic law: we will know this institution and identify its independent existence from the world of demonstration.