 Most contemporary reductionist as well as eliminativist positions include some commitment to materialism or physicalism—the view that the physical or material provides the fundamental reductive base. However reductionism per se is ontologically neutral. The concept of reduction entails no specific ontological positions. It is logically independent of physicalism or materialism. Indeed reductionism could be true of the entities in a totally nonphysical world as long as it had some base and everything in that world reduced to that base. Reduction is a general relation between entities or theories that might hold in many sorts of specific cases.