عنوان مقاله [English]
Metaphysics is generally a real knowledge which uses demonstration (proof) as its method of discovery; because it is merely argumentation which leads to certainty in its special meaning. Yet some metaphysic schools formed in the field of the transcendental wisdom school of Molla-Sadra do not accept a priori proofs – which is a proof via the nafs-ol-amr cause – because the subject of philosophy is 'being' and the predicates of being are all about being and are identical with it; the reason is that there is nothing other than the reality of being because of the 'principality of being' while being has no cause beyond it. A kind of posteriori proof which is [obtained] through general consequences is considered certain in the "philosophy of realism" and the method of discovery in metaphysics is considered to be this kind of proof. The method of discovery in metaphysics and this innovating view which is rooted in the words of Sheikh-o-Ra'is [Avicenna] is disclosed in this article using an innovative and process analysis.