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Ideas for 'Thinking About Mathematics', 'New Essays on Human Understanding' and 'Grounding, Transitivity and Contrastivity'

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5 ideas

26. Natural Theory / A. Speculations on Nature / 1. Nature
I take what is fundamental to be the whole spatiotemporal manifold and its fields [Schaffer,J]
     Full Idea: I myself would prefer to speak of what is fundamental in terms of the whole spatiotemporal manifold and the fields that permeate it, with parts counting as derivative of the whole.
     From: Jonathan Schaffer (Grounding, Transitivity and Contrastivity [2012], 4.1.1)
     A reaction: Not quite the Parmenidean One, since it has parts, but a nice try at updating the great man. Note the reference to 'fields', suggesting that this view is grounded in the physics rather than metaphysics. How many fields has it got?
26. Natural Theory / C. Causation / 1. Causation
Nowadays causation is usually understood in terms of equations and variable ranges [Schaffer,J]
     Full Idea: The leading treatments of causation work within 'structural equation models', with events represented via variables each of which is allotted a range of permitted values, which constitute a 'contrast space'.
     From: Jonathan Schaffer (Grounding, Transitivity and Contrastivity [2012], 4.3.1)
     A reaction: Like Woodward's idea that causation is a graph, this seems to be a matter of plotting or formalising correlations between activities, which is a very Humean approach to causation.
26. Natural Theory / D. Laws of Nature / 8. Scientific Essentialism / a. Scientific essentialism
Qualities should be predictable from the nature of the subject [Leibniz]
     Full Idea: Whenever we find some quality in a subject, we ought to believe that if we understood the nature of both the subject and the quality we would conceive how the quality could arise from it.
     From: Gottfried Leibniz (New Essays on Human Understanding [1704], Pref 66)
     A reaction: This is the idea that powers are prior to properties, which seems right to me. I take essence to be something like the best explanation of qualities.
Gold has a real essence, unknown to us, which produces its properties [Leibniz]
     Full Idea: The complex idea of gold includes its being something which has a real essence whose detailed constitution is unknown to us, except for the fact that such qualities as malleability depend upon it.
     From: Gottfried Leibniz (New Essays on Human Understanding [1704], 3.10)
     A reaction: This is precisely the view of modern scientific essentialism. The underlying idea I take to be the conception of essence as the thing which explains the properties.
Part of our idea of gold is its real essence, which is not known to us in detail [Leibniz]
     Full Idea: It is very true that it is part of the complex idea of gold that it is a thing which has a real essence, the constitution of which is not otherwise known to us in detail.
     From: Gottfried Leibniz (New Essays on Human Understanding [1704], 6.6.345), quoted by Nicholas Jolley - Leibniz and Locke on Essences p.201
     A reaction: See also Idea 12807. This is the clearest possible statement of Leibniz's clear-cut scientific essentialism, here presented in opposition to Locke (thought I take the latter to be only bothered by our inability to know the hidden constitution).