Ma`rifat Falsafi

Resorting to the principle of "anything whose existence implies its repetition is conventional", Suhrawardī regards both philosophical and logical concepts as merely mental, believing that philosophical concepts – just like logical concepts – have both Oruze Khareji and Ettesaf Khareji. On the contrary, later well-known philosophers believe that philosophical concepts, while having Oruze Khareji, and Ettesaf Khareji. Mullā Sadrā first accepts the well-known view, but ultimately comes to the idea that philosophical concepts have both Oruze Khareji and Ettesaf Khareji. Thus, although philosophical concepts have external realizations, they have no concrete existence; rather, they enjoy integrated existence.