 Gnostic systems postulate a dualism between God and the world, varying from the "radical dualist" systems of Manichaeism to the "mitigated dualism" of classic gnostic movements.Radical dualism, or absolute dualism, posits two co-equal divine forces, while in "mitigated dualism" one of the two principles is in some way inferior to the other.In "qualified monism" the second entity may be divine or semi-divine.