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The quality of God's knowledge of creatures with regard to the simplicity of his essence is a matter which has been discussed by Islamic
philosophers since old time. Peripatetic (Mashsha,i) philosophers had held to the God's active acquired knowledge of things, and illuminating philosophers had held to the God's intuitive knowledge of things; and about that this knowledge is summary or detailed, and if it is detailed how it will be compatible with the simplicity of God's essence, also have been developed ideas.
One of the problems which has been solved well in Molla Sadra's
transcendent philosophy is the same problem. He has affirmed according to the «authenticity of being» that the God's detailed knowledge of things does not contradict the simplicity of God's essence, and God's
summary knowledge is in the same time the detailed revelation, and thereby he has solved this problem.