Combining Texts

Ideas for 'Writing the Book of the World', 'The Mind and the Soul' and 'Causal and Metaphysical Necessity'

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3 ideas

26. Natural Theory / D. Laws of Nature / 5. Laws from Universals
We might say laws are necessary by combining causal properties with Armstrong-Dretske-Tooley laws [Shoemaker]
     Full Idea: One way to get the conclusion that laws are necessary is to combine my view of properties with the view of Armstrong, Dretske and Tooley, that laws are, or assert, relations between properties.
     From: Sydney Shoemaker (Causal and Metaphysical Necessity [1998], I)
     A reaction: This is interesting, because Armstrong in particular wants the necessity to arise from relations between properties as universals, but if we define properties causally, and make them necessary, we might get the same result without universals.
26. Natural Theory / D. Laws of Nature / 11. Against Laws of Nature
The notion of law doesn't seem to enhance physical theories [Sider]
     Full Idea: Adding the notion of law to physical theory doesn't seem to enhance its explanatory power.
     From: Theodore Sider (Writing the Book of the World [2011], 02.4)
     A reaction: I agree with his scepticism about laws, although Sider offers it as part of his scepticism about modal facts being included in explanations of actuality. Personally I like dispositions, but not laws. See the ideas of Stephen Mumford.
Many of the key theories of modern physics do not appear to be 'laws' [Sider]
     Full Idea: That spacetime is 4D Lorentzian manifold, that the universe began with a singularity, and in a state of low entropy, are all central to physics, but it is a stretch to call them 'laws'. ...It has been argued that there are no laws of biology.
     From: Theodore Sider (Writing the Book of the World [2011], 03.1)