Open Peer Commentary Palmer: Color and consciousness
Logical possibility and the isomorphism constraint
Bernard Harrison a1 a1 Department of Philosophy, University of Utah, Salt Lake City, UT 84112
Palmer's “isomorphism constraint” presupposes the logical possibility of two qualitatively disparate sets of sensory experiences exhibiting the same relationships. Two arguments are presented to demonstrate that, because such a state of affairs cannot be coherently specified, its occurrence is not logically possible. The prospects for behavioral and biological science are better than Palmer suggests; those for functionalism are worse.