Abstract

In this article the issue of fundamentality of existence which is one ofthe greatest subjects in Islamic philosophy has been considered. Afterexplaining the key words it is stated that the issue of fundamentalityof existence is intending to prove the externality of existence and thatthe existence is a real and external issue and it is not a mental issue.Meanwhile it has been mentioned that proving the externality ofexistence was propounded for the western philosophers too, ratherthey were not able to prove the externality of existence and thereforethey were faced with a great amount of epistemological problems.However in regard with the principle of fundamentality of existencethese problems will be easily solvable.At the end of the article some of the fundamentality of existenceramifications have been explained and then the article has come to itsend by a conclusion from all the stated subjects