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The Soul-body problem is will know the Mind-Body problem, It is a gaping hole the various views confront Monismand dulism. Leibniz and Mulla Sadra who have similar views delivering them selves from Avicenna and Decartes problems, try to solve the problem of relation of soul and body with more inherent coherency, in their the ories. For example Mullasadra has introduced soul as an existance between the border of material world and immaterial world and leibniz has called it as an special mond that isn't completely material nor completely immaterial. Mulla Sadra has expressed the unified combination of soul with body as an special sort of combination from all kinds of it. Leibniz believes that the combination of mondsoul with body isn't similar with the material ones. The theorical approximate of soul and body, and the special definition of combination of soul and body, are two common views of Mulla Sadra and Leibniz doctrines.