يسمى به لإفادته اللمية والعلية
It receives this name because it conveys the “why” and the causal explanation.
To report that something occurs is one achievement; to show what accounts for it is another. In limmī demonstration, the middle term connects the epistemic explanation with the real cause.
Merely labeling something a “cause” is insufficient. The middle term must genuinely explain the predication, the premise must be established, and the syllogism must validly yield its conclusion.