A comparative study of the views of Plotinus, Proclus and Allameh Tabatabai about doubting existence

The issue of existence doubt is one of the common issues between theology and philosophy, of course Islamic mystics have also paid serious attention to this issue and have discussed it in their books. The importance of this issue is so great that one can dare He said that after the "authenticity of existence", no problem in the transcendental wisdom has the value and importance of "establishment of existence" and the solution of most of the issues and problems of the transcendental wisdom depends on it. Whether this issue has Greek or Western roots or not has always been a subject of debate among experts, however, some believe that the detailed design of this concept is an initiative of Islamic thinkers and we have not heard anything about it in the thoughts of Greek philosophers. . The upcoming essay intends to compare the views of Plotinus, Proclus, and Allameh in this area while finding the roots of the question of doubt in existence.