'''Nominalism''' is the metaphysical philosophy that universals and abstract realities have no real existence, and that their designation as existing realities is a convention of names and language and an illusion. It is opposed to the metaphysical philosophy of [[Realists|Realism]]. Conceptualism designates several metaphysical doctrines proposing a compromise between realism and nominalism which regard universals as concepts. Compare [[Idea]].
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'''Nominalism''' is the metaphysical philosophy of [[Nominalists]] that universals and abstract realities have no real existence, and that their designation as existing realities is a convention of names and language and an illusion. It is opposed to the metaphysical philosophy of [[Realists|Realism]]. Conceptualism designates several metaphysical doctrines proposing a compromise between realism and nominalism which regard universals as concepts. Compare [[Idea]].