--- abstract: |2 It is proposed here that all successful and complete theories always proceed through an intermediate stage of instrumentalism to the final stage of realism. Examples from history of science ( both classical and modern ) in support of this hypothesis are presented. altloc: - http://arxiv.org/abs/physics/0511044 chapter: ~ commentary: ~ commref: ~ confdates: ~ conference: ~ confloc: ~ contact_email: ~ creators_id: [] creators_name: - family: Abbas given: Afsar honourific: Dr. lineage: '' date: 2005-11 date_type: published datestamp: 2005-11-15 department: ~ dir: disk0/00/00/46/18 edit_lock_since: ~ edit_lock_until: ~ edit_lock_user: ~ editors_id: [] editors_name: [] eprint_status: archive eprintid: 4618 fileinfo: /style/images/fileicons/application_pdf.png;/4618/1/psi2r.pdf full_text_status: public importid: ~ institution: ~ isbn: ~ ispublished: ~ issn: ~ item_issues_comment: [] item_issues_count: 0 item_issues_description: [] item_issues_id: [] item_issues_reported_by: [] item_issues_resolved_by: [] item_issues_status: [] item_issues_timestamp: [] item_issues_type: [] keywords: 'realism, antirealism, instrumentalism' lastmod: 2011-03-11 08:56:13 latitude: ~ longitude: ~ metadata_visibility: show note: ~ number: ~ pagerange: ~ pubdom: FALSE publication: ~ publisher: ~ refereed: FALSE referencetext: |+2 Hall, A. R, and Hall, Marie Boas (1964), " A brief history of science ",Signet Science Library Books, The New American Library of World Literature, New York Ladyman, J. (2002), " Understanding philosophy of science ", Routledge, London Nobel Lectures - Physics (1963 - 1970), Elsevier Publishing Company, New York Penrose, R. (2004), " The road to reality: a complete guide to the laws of the universe ", Jonathan Cape, London Russell, B. (1946), " History of western philosophy ", Routledge, London Shepere, D. (1964), " The structure of scientific revolutions ", Philosophical Review, Vol. 73, 383 - 94 Wigner, E. (1960), " The unreasonable effectiveness of mathematics in the natural sciences ", Communications in Pure Communications in Pure and Applied Mathematics, Vol 13, No. 1 Zweig G. (1965), " Fractionally Charged particles and SU(6) ", in " Symmetry in Elementary Particle Physics ", Ed. A. Zichichi, Holt Academic Press, New Y relation_type: [] relation_uri: [] reportno: ~ rev_number: 12 series: ~ source: ~ status_changed: 2007-09-12 17:01:16 subjects: - phil-sci succeeds: ~ suggestions: ~ sword_depositor: ~ sword_slug: ~ thesistype: ~ title: An " Instrumentalism to Realism " Hypothesis type: preprint userid: 3538 volume: ~