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2000 Optics of Thought: Logic and Vision in Müller, Helmholtz, and Frege
D. C. McCarty
Notre Dame J. Formal Logic 41(4): 365-378 (2000). DOI: 10.1305/ndjfl/1038336881


The historical antecedents of Frege's treatment of binocular vision in "The thought" were the physiological writings of Johannes Mueller, Hermann von Helmholtz, and Emil du Bois-Reymond. In their research on human vision, logic was assigned an unexpected role: it was to be the means by which knowledge of a world extended in three dimensions arises from stimuli that are at best two-dimensional. An examination of this literature yields a richer understanding of Frege's insistence that a proper epistemology requires us to recognize the existence and importance of nonsensible sources of knowledge.


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D. C. McCarty. "Optics of Thought: Logic and Vision in Müller, Helmholtz, and Frege." Notre Dame J. Formal Logic 41 (4) 365 - 378, 2000.


Published: 2000
First available in Project Euclid: 26 November 2002

zbMATH: 1032.01017
MathSciNet: MR1963487
Digital Object Identifier: 10.1305/ndjfl/1038336881

Primary: 01A55
Secondary: 03-03

Keywords: Frege , logic , physiology , vision , von Helmholtz

Rights: Copyright © 2000 University of Notre Dame


Vol.41 • No. 4 • 2000
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