What was Fisher's fundamental theorem of natural selection and what was it for?

Fisher’s ‘fundamental theorem of natural selection’ is notoriously abstract, and, no less notoriously, many take it to be false. In this paper, I explicate the theorem, examine the role that it played in Fisher’s general project for biology, and analyze why it was so very fundamental for Fisher. I defend Ewens (1989) and Lessard (1997) in the view that the theorem is in fact a true theorem if, as Fisher claimed, ‘the terms employed’ are ‘used strictly as defined’ (1930, p. 38). Finally, I explain the role that projects such as Fisher’s play in the progress of scientific inquiry.
Keywords fundamental theorem  natural selection  R. A. Fisher
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DOI 10.1016/j.shpsc.2005.12.004
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References found in this work BETA
J. B. S. Haldane (1964). A Defense of Beanbag Genetics. Perspectives in Biology and Medicine 7 (3):343-360.

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Rasmus Grønfeldt Winther, Ryan Giordano, Michael D. Edge & Rasmus Nielsen (2015). The Mind, the Lab, and the Field: Three Kinds of Populations in Scientific Practice. Studies in History and Philosophy of Science Part C: Studies in History and Philosophy of Biological and Biomedical Sciences 52:12-21.
Charles H. Pence (2011). “Describing Our Whole Experience”: The Statistical Philosophies of W. F. R. Weldon and Karl Pearson. Studies in History and Philosophy of Biological and Biomedical Sciences 42 (4):475-485.

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