First effect as point of view of Proclus and Molasadra

One of the most important philosophical issues for all doctrines such as those which consider the divine and unique source for all creatures is clarification of the world emergence and the ways of processing numerousness from the unique. Mean while, Muslim philosophers have discussed the first emanated effect based on monotheism principle and compatibility between cause and effect and also based on the rule of “The unique”. Sadrolmotealehin is one of the Muslim philosophers who know the first effect as the existence, for the first time. Among western philosophers, the basic centric problem for neoplatos is the ways of unique excessiveness (i.e. how a unique existence become the source of multiple beings). Proclus (Abarqoles- Broqles. 485-410) is one of the most important Neo-Platonist of the Plotinus who lived in fifth century A.D. He was in charge of Aten district for many years. Proclus considered the being as the first effect. This study is a comparison between Molasadra and Proclus point of view about the first effect.