Analyze from the angle of demonstration, presumption of fault is the result of law experience and deduction, not the arbitrariness of the judge, which endows presumption of fault rationality, and can be accommodated by legal system.

• 从实证的角度分析，过错推定是一种法律经验和逻辑推论的结果，而不是立法者的任意，这使得过错推定制度具有一种特定法律发展的合理性，并能为法学理论体系所容纳。