Solving the Problem of the Philosophical Secondary Intelligibles by Sadr Al-Mutallehin and Its Result

The discussion of the philosophical first and secondary intelligibles place in issues about science but it has been raised more as ontological point of view among Muslim scholars and they had the concern of determining of how these terms were applied. Almost all the philosophers before Mulla Sadra made the external fulfilment of these concepts impossible and believed that when one of these concepts is applied to an external thing, there is actually a relationship between a mental and an external matter, but Mulla Sadra believes that the connection between the mental and the external matter is impossible and both sides of the connection must be realized in the realm of the realization of connection and qualification. If the qualification is in the mind, the sides must be in mind and if the qualification is in outside, the sides must be outside.