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Ideas for 'Metaphysics', 'Apriority and Existence' and 'The Nature of Universals and Propositions'

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8 ideas

8. Modes of Existence / B. Properties / 1. Nature of Properties
There cannot be uninstantiated properties [Aristotle, by Macdonald,C]
     Full Idea: Aristotle held that there could be no uninstantiated properties.
     From: report of Aristotle (Metaphysics [c.324 BCE], Bk 04) by Cynthia Macdonald - Varieties of Things
     A reaction: This is obviously a right hook aimed at Plato. Clearly we can think about uninstantiated properties, but the literal truth of Aristotle's view I would take to be tautological. To exist is to be instantiated.
Properties are just the ways in which forms are realised at various times [Aristotle, by Frede,M]
     Full Idea: On Aristotle's new theory it is forms that exist in their own right, whereas properties merely constitute the way forms of a certain kind are realized at some point of time in their existence.
     From: report of Aristotle (Metaphysics [c.324 BCE], props) by Michael Frede - Substance in Aristotle's 'Metaphysics' p.80
     A reaction: I'm not sure that 'merely' gives us enough of a story here. I never understand the word 'realised' (or 'instantiated', come to that). What does x have to do to realise y? Is that a relation between a real and a non-real thing?
The 'propriae' or 'necessary accidents' of a thing are separate, and derived from the essence [Aristotle, by Koslicki]
     Full Idea: Aristotle conceives of the necessary features of objects, traditionally known as the 'propria' or 'necessary accidents', as being distinct and derivate from, the essential features of objects.
     From: report of Aristotle (Metaphysics [c.324 BCE], props) by Kathrin Koslicki - Essence, Necessity and Explanation 13.1
     A reaction: This is a vague area, because Aristotle says very little about it. See Ideas 12266 and 12262. A particular shape of mole might be yours alone, but not part of your essence. That may be an 'idion' rather than a 'propria' (or are they the same?).
8. Modes of Existence / B. Properties / 2. Need for Properties
For two things to differ in some respect, they must both possess that respect [Aristotle]
     Full Idea: That which is different is different from something under some aspect, so that there must be something the same in respect of which they differ.
     From: Aristotle (Metaphysics [c.324 BCE], 1054b26)
8. Modes of Existence / B. Properties / 5. Natural Properties
For Aristotle, there are only as many properties as actually exist [Aristotle, by Jacquette]
     Full Idea: In Aristotle's metaphysics of substance, there are only as many properties as actually inhere in existent spatiotemporal particulars.
     From: report of Aristotle (Metaphysics [c.324 BCE], props) by Dale Jacquette - Ontology Ch.2
     A reaction: This would mean, oddly, that squareness ceased to be a property if the last square thing vanished. But then how do we establish the existence of unrealised properties? Is 'bigger than the biggest existent object' a property?
8. Modes of Existence / B. Properties / 8. Properties as Modes
Whiteness can be explained without man, but femaleness cannot be explained without animal [Aristotle]
     Full Idea: Whiteness can be explained without man, but femaleness cannot be explained without animal.
     From: Aristotle (Metaphysics [c.324 BCE], 1030b28)
     A reaction: This has to be a key basic distinction in any discussion of properties. But does the difference in explanation entail a difference in fundamental nature? Femaleness is structural.
8. Modes of Existence / B. Properties / 10. Properties as Predicates
If we only saw bronze circles, would bronze be part of the concept of a circle? [Aristotle]
     Full Idea: Suppose we only ever saw bronze circles - would that make the bronze a formal part of the circle?
     From: Aristotle (Metaphysics [c.324 BCE], 1036b01)
     A reaction: This is Aristotle spotting the problem of coextensionality (the renate/cordate problem) 2300 years ago. Don't underestimate those Greeks.
8. Modes of Existence / B. Properties / 13. Tropes / a. Nature of tropes
Stout first explicitly proposed that properties and relations are particulars [Stout,GF, by Campbell,K]
     Full Idea: In modern times, it was G.F. Stout who first explicitly made the proposal that properties and relations are as particular as the substances that they qualify.
     From: report of G.F. Stout (The Nature of Universals and Propositions [1923]) by Keith Campbell - The Metaphysic of Abstract Particulars §1
     A reaction: Note that relations will have to be tropes, as well as properties. Williams wants tropes to be parts of objects, but that will be tricky with relations. If you place two objects on a table, how does the 'to the left of' trope come into existence?