Continues the argument establishing the indispensability of the application of the truth idiom to applied mathematical doctrine and empirical law. Strategies such as Field’s for circumventing the truth of indispensable mathematics and science are considered: epistemic, semantic, and instrumentalist. Although some theories have implications scientists quarantine and so indicate their noncommitment, such practices won’t support philosophical attempts to establish instrumentalist positions on the truth or falsity of statements about theoretical entities or arithmetical truths about numbers.
Keywords: Field, indispensability, instrumentalism, numbers, quarantining implications of theories, realism, truth