Nominalism and conceptualism are the main forms of anti-realism about universals. Conceptualism is a position that is meshed between realism and nominalism. Four major forms of nominalism are predicate nominalism, resemblance nominalism, trope nominalism, and conceptualism. Goodman's nominalism was driven purely by ontological considerations. Trope theory (or trope nominalism) in metaphysics is a version of nominalism. It was immediately steeped in mediaeval nominalism and early Protestantism. The debate between realism and nominalism also took place in Indian philosophy. Between these poles of realism and nominalism stand a variety of other positions. There are various forms of nominalism ranging from extreme to almost-realist. The former position has been called "philosophical realism", and the latter "nominalism". Another form of nominalism is trope nominalism. However, the name "nominalism" emerged from debates in medieval philosophy with Roscellinus. He also calls it "postmodern nominalism" in that the names express the new and fashionable. JP Moreland distinguishes between "extreme" and "moderate" nominalism. In philosophy of law, nominalism finds its application in what is called constitutional nominalism.