The Range of Accepted Premises from the Perspective of Farabi and Ibn Sina

Using a descriptive- analytical method, this paper attempts to determine the range of acceptable premises as well as their functions from the perspective of Farabi and Ibn Sina, two great Islamic philosophers. Farabi and Ibn Sina have both dealt with the wide range of the three classes of accepted premises and their quantitative types. The only difference is that Ibn Sina has forged new names for the types of accepted premises. With regard to the issue of penetrability, unlike Farabi who has dealt only with the penetrability of accepted premises with certain premises, Ibn Sine has refered to their penetrability with the other types of analogy. It seems that Ibn Sina, as an innovative exegetist, has explained and expanded Farabi’s viewpoint and implicitly referred to the broadness of the sphere of influence and function of accepted premises in all scientific aspects and social life. Finally, the views of these two philosophers about the ultimate goal of accepted premises and the figure of apologetic argumentation are in line with their objectives, namely philosophy, Divine knowledge and the level of intuition and absolute Truth.