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A. I. Sabra
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Journal Articles
Publisher: Journals Gateway
Perspectives on Science (2000) 8 (4): 342–345.
Published: 01 December 2000
Journal Articles
Publisher: Journals Gateway
Perspectives on Science (1998) 6 (3): 288–330.
Published: 01 September 1998
Abstract
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The undoubted truth is that there exist for the planetary motions true and constant configurations from which no impossibilities or contradictions follow; they are not the same as the configurations asserted by Ptolemy; and Ptolemy neither grasped them nor did his understanding get to imagine what they truly are.