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The British Journal for the Philosophy of Science Advance Access





Published: Fri, 16 Feb 2018 00:00:00 GMT

Last Build Date: Fri, 16 Feb 2018 08:52:55 GMT

 



Equivalent and Inequivalent Formulations of Classical Mechanics

Fri, 16 Feb 2018 00:00:00 GMT

Abstract
In this paper, I examine whether or not the Hamiltonian and Lagrangian formulations of classical mechanics are equivalent theories. I do so by applying a standard for equivalence that was recently introduced into philosophy of science by Halvorson, Halvorson ([2012, 2016]) and Weatherall ([2016a]). This case study yields three general philosophical payo offs. The first concerns what a theory is, while the second and third concern how we should interpret what our physical theories say about the world.



A Dispositional Theory of Health

Mon, 05 Feb 2018 00:00:00 GMT

Abstract
A satisfactory account of the nature of health is important for a wide range of theoretical and practical reasons. No theory offered in the literature thus far has been able to meet all the desiderata for an adequate theory of health. This paper introduces a new theory of health, according to which health is best defined in terms of dispositions at the level of the organism as a whole. After outlining the main features of the account and providing formal definitions of ‘health’, ‘healthy’, and ‘healthier than’, I present the main strengths of the proposed account. I argue that the proposed dispositional theory accounts for all paradigm cases of health and pathology, that it circumvents a number of problems faced by rival theories, and that it makes for a naturalistic theory of health with a rigorous metaphysical underpinning.