The quiddity and meaning of its posited of sadera

Sadr-al motalihin's philosophical thoughts as one of the philosopher schools in the field of ontology, has had several ups and downs during the time. So that more of his philosophical thoughts, gradually as a result of evolution, has been changed and he passing out and set aside his previous theories, with new theory replace them, entered his philosophy into new areas. This article tries to observe the course of Sadra’s thoughts, in one of the most important philosophical issues (quiddity and this means that it is something posited) to explain his last comments in this field by examining the Sadra’s different opinions.
The most serious challenge and a problem that Sadra has faced in this case, is that if quiddity something that fundamentally real? He in response to this problem, says quiddity is something posited and it explains by means of the following statement: »quiddity is by accident «,» quiddity is limit of existence «,» quiddity is virtual «,» quiddity is subdominant «.
What Sadra as your final wants, in the form of these propositions, to express, is that there is no quiddity and that Sadra said that it is something posited and with Expressions» by accident «,» limit of existence «,» virtual «and» subdominant«, is in trying to explain it, have been because of the narrowness words (No words), Otherwise, he Will not accept that there is quiddity.