والعرض المفارق: ما لم يمتنع انفكاكه عن الملزوم، كالكتابة بالفعل للإنسان، والمشي بالفعل له.
A separable accident is one that can cease to belong to its subject, as in a human actually writing or actually walking.
A person may stop writing or sit down and still remain human. These actions are states that can be absent without destroying the subject's nature.
Actual writing and actual walking are therefore separable accidents, unlike the defining differentia 'rational' or the necessary evenness of four.