Combining Texts

All the ideas for 'Philosophical Explanations', 'Comment on Armstrong and Forrest' and 'On 'Physics''

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7 ideas

7. Existence / A. Nature of Existence / 2. Types of Existence

16664	Everything that exists is either a substance or an accident [Albert of Saxony]
	Full Idea: Everything that exists is either a substance or an accident.
	From: Albert of Saxony (On 'Physics' [1357], I.18), quoted by Robert Pasnau - Metaphysical Themes 1274-1671 13.2
	A reaction: This seems to be the view of those who base their ontology on first-order classical logic. The more austere reading of that makes the accidents into sets of substances, so it's just substances. All the non-substance stuff cries out for recognition.

8. Modes of Existence / D. Universals / 1. Universals

15453	The main rivals to universals are resemblance or natural-class nominalism, or sparse trope theory [Lewis]
	Full Idea: The leading rivals to a theory of universals are resemblance or natural-class nominalism, or sparse trope theory.
	From: David Lewis (Comment on Armstrong and Forrest [1986], p.110)
	A reaction: If that is the complete menu, I choose resemblance nominalism. All discussion of properties in terms of classes is wildly misguided (because properties come first). Why not 'natural' tropes?

9. Objects / C. Structure of Objects / 1. Structure of an Object

15452	We could not uphold a truthmaker for 'Fa' without structures [Lewis]
	Full Idea: We could not, without structures, uphold the principle that every truth has a truthmaker. If Fa is true, the truthmaker is not F, not a, nor both together; not their mereological sum; not a set-theoretic construction. These would exist just the same.
	From: David Lewis (Comment on Armstrong and Forrest [1986], p.109)
	A reaction: This point ought to trouble Lewis, as well as Armstrong and Forrest. If we assert 'Fa', we must (in any theory) have some idea of what unites them, as well as of their separate existence. It must a fact about 'a', not a fact about 'F'.

9. Objects / E. Objects over Time / 6. Successive Things

16703	God could make a successive thing so that previous parts cease to exist [Albert of Saxony]
	Full Idea: Something can be conceived of as successive simpliciter, with respect to both its substance and its state. For example, if Socrates were continually made and made again by the First Cause, as the Seine flow, so nothing of what preexists remains.
	From: Albert of Saxony (On 'Physics' [1357], III.3), quoted by Robert Pasnau - Metaphysical Themes 1274-1671 18.4
	A reaction: This is precisely the problem that modern stage theory faces, of knowing how to connect the stages together.

16699	Successive entities just need parts to succeed one another, without their existence [Albert of Saxony]
	Full Idea: For existence to hold of completely successive entities it is not required that their parts exist, but that one part succeed another, as a future part succeeds a past part.
	From: Albert of Saxony (On 'Physics' [1357], III.3 ad 2), quoted by Robert Pasnau - Metaphysical Themes 1274-1671 18.3
	A reaction: A nice move, but it doesn't quite solve it. How can non-existent things 'succeed one another'? It is worrying for metaphysics that some things have entirely different concepts of persistence from other things.

11. Knowledge Aims / A. Knowledge / 4. Belief / c. Aim of beliefs

3570	Maybe knowledge is belief which 'tracks' the truth [Nozick, by Williams,M]
	Full Idea: Nozick suggests that knowledge is just belief which 'tracks the truth' (hence leaving out justification).
	From: report of Robert Nozick (Philosophical Explanations [1981]) by Michael Williams - Problems of Knowledge Ch. 2

13. Knowledge Criteria / C. External Justification / 4. Tracking the Facts

2748	A true belief isn't knowledge if it would be believed even if false. It should 'track the truth' [Nozick, by Dancy,J]
	Full Idea: Nozick says Gettier cases aren't knowledge because the proposition would be believed even if false. Proper justification must be more sensitive to the truth ("track the truth").
	From: report of Robert Nozick (Philosophical Explanations [1981], 3.1) by Jonathan Dancy - Intro to Contemporary Epistemology 3.1
	A reaction: This is a bad idea. I see a genuine tree in my garden and believe it is there, so I know it. That I might have believed it if I was in virtually reality, or observing a mirror, won't alter that.