Intertheoretic Identification and Mind-Brain Reductionism Mark Crooks, Michigan State University The Journal of Mind and Behavior, Summer 2002, Volume 23, Number 3, Pages 193–222, ISSN 0271–0137 A recurrent candidate for exemplification of intertheoretic reduction, put forward over past decades within philosophy of science, is the proposition “pitch is identical with sound-frequency.” Paul Churchland revives this