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8. Modes of Existence / C. Powers and Dispositions / 6. Dispositions / b. Dispositions and powers

[relation of dispositions to underlying active powers]

11 ideas
There cannot be power without action; the power is a disposition to act [Leibniz]
The real essence of a thing is its powers, or 'dispositional properties' [Copi]
Causal powers are a proper subset of the dispositional properties [Ellis]
A causal power is a disposition to produce forces [Ellis]
Powers are dispositions of the essences of kinds that involve them in causation [Ellis]
Dispositional predicates ascribe powers, and the rest ascribe properties [Shoemaker]
If powers only exist when actual, they seem to be nomadic, and indistinguishable from non-powers [Molnar]
If dispositions are powers, background conditions makes it hard to say what they do [Mumford]
Maybe dispositions can replace powers in metaphysics, as what induces property change [Mumford]
We say 'power' and 'disposition' are equivalent, but some say dispositions are manifestable [Mumford/Anjum]
Scholastics reject dispositions, because they are not actual, as forms require [Pasnau]