Media type: E-Article Title: Book Review: Extensionalism: The Revolution in Logic Contributor: Friend, Michèle imprint: SAGE Publications, 2013 Published in: Philosophy of the Social Sciences Language: English DOI: 10.1177/0048393111400706 ISSN: 0048-3931; 1552-7441 Keywords: Social Sciences (miscellaneous) ; Philosophy Origination: Footnote: