Abstract
Gilbert Harman, Indeterminacy, Relativity, and Behaviorism: The indeterminacy of radical translation is comparable to the various ways of representing number theory in set theory. Transcendent notions of reference and meaning, which are subject to indeterminacy, can be distinguished from immanent notions that are trivially not subject to indeterminacy. Although Quine's discussions of these issues emphasize behavioral dispositions, he appeals to dispositions as place‐holders for currently unknown underlying physical or functional bases. His discussion in The Roots of Reference shows that considerable understanding can be achieved even at that behavioral level.