University of Isfahan Metaphysics 2476-3276 10 26 2018 09 23 Critical review of rational reasons for Fayyad Lahiji on proving the existence of intellects. Critical review of rational reasons for Fayyad Lahiji on proving the existence of intellects. 71 88 23145 10.22108/mph.2018.107144.1059 FA Seyyed Reza Moazzen Department of Islamic Philosophy and Theology, Faculty of Literature and Humanities, university of Esfahan, Esfahan Iran Mohamadmahdi Meshkati Assistant Professor Department of Islamic Philosophy and Theology, Faculty of Literature and Humanities, University of Esfahan, Esfahan, Iran Journal Article 2018 01 03 The existence of single beings in the name of intellects is one of the important issues of Islamic philosophy which is favorable and opposed. This article examines the rationale of Fayyad Lahiji on the existence of intellect. He cited three major rational reasons for this issue. His first reason is the rule of Al_ Wahid that he regards it with problems as Khaje Tusi and passes through it. But his two other reasons are based on the permanent motion of the sky and not cause being of the object. Khaje also considers these two reasons unfinished, but Lahiji does not accept the critiques of Khaje on these two reasons and considers these two reasons enough to prove the intellects. This article reinforces Khaje's view and challenges Fayyad's view and also does not consider these two reasons enough to prove the claim The existence of single beings in the name of intellects is one of the important issues of Islamic philosophy which is favorable and opposed. This article examines the rationale of Fayyad Lahiji on the existence of intellect. He cited three major rational reasons for this issue. His first reason is the rule of Al_ Wahid that he regards it with problems as Khaje Tusi and passes through it. But his two other reasons are based on the permanent motion of the sky and not cause being of the object. Khaje also considers these two reasons unfinished, but Lahiji does not accept the critiques of Khaje on these two reasons and considers these two reasons enough to prove the intellects. This article reinforces Khaje's view and challenges Fayyad's view and also does not consider these two reasons enough to prove the claim https://mph.ui.ac.ir/article_23145_babb449a86d80c21423e00c7d3a7cf6b.pdf