| 1. | Carl Gustav Hempel | | | Essay with bibliography on this 20th-century thinker's life and ideas, by Mauro Murzi. From the Internet Encyclopedia of Philosophy. www.utm.edu |
| 3. | Geometry and Empirical Science | | | Text of a 1945 paper by Hempel from the American Mathematical Monthly. Frameset with table of contents and text in separate frames. www.ditext.com |
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