Principality of Existence; A Self-Evident or Speculative Issue

The issue of principality such as is presented in some lately centuries, was begun from Mulla Sadraʼs age. And from that time, the self-evidence of this issue, had been presented. We have surveyed in this article, with analytic method to this issue, and we have indicated, because the speakers of principality of existence say the existence is simplicity, the self-evidence of this issue from these things those are around us, is unjustified leap an existence with those characters. A view point that say the existence is principality and quiddity is objectivity, is disagreement with our observes. And we have mentioned in this articles cases of existence, those they can grasps for philosophers, those believe the principality of existence.