say you used X logic to get to a definition of a word... a word that had 8 ways to be used across the different parts of speach it could cover...
All 8 definitions would rest in row 3 of this pyramid we just constructed...
That doesn't mean each definition can be used as a reference for the word in the sentence. — DifferentiatingEgg
Basically I'm saying Quine used math to inform on linguistics. — DifferentiatingEgg
Hence the logical importance of the fact that all singular terms, aside from the variables that serve as pronouns in connection with quantifiers, are dispensable and eliminable by paraphrase.
We saw in §1 that referential opacity can obstruct substitutivity of identity. We now see that it also can interrupt quantification: quantifiers outside a referentially opaque construction need have no bearing on variables inside it.
If querying the sentence elicits ascent from the given speaker on one occasion it will elicit ascent likewise on any other occasion when the same total set of receptors is triggered... — Quine, Pursuit of Truth, § 15 Stimulation Again
and(9) Philip is unaware that Tully denounced Catiline
But Philip is aware that Cicero denounced Catiline. What he is unaware of is that Cicero and Tully are the same person. The difficulty here is the misfiring of the reference.(29) Something is such that Philip is unaware that it denounced Catiline
will result in modal collapse if the domain includes more than integers. In a modal context substitution will maintain truth, provided that we keep track of the domains and individuals being addressed, and hence the accessibility between possible worlds. This is not the case in attitudinal opacity...(30) (∃x)(x is necessarily greater than 7)
As explained above,
(30) (∃x)(x is necessarily greater than 7)
will result in modal collapse if the domain includes more than integers. — Banno
I suspect that this is how Quine pictures his criticism... much more depth is needed here. We will need to go over Kripke's solution again, and how rigid designation fixes the same individual in multiple possible worlds, each in effect a different domain.As Quine explains it, doesn't the collapse occur regardless of the domain? It has to do with existential generalization itself, no? But maybe I'm missing it. — J
I missed your post, my apologies.Not because such a reading (there existing a winner of all possible plays of the game or a richest in all worlds or a greater than 7 in all worlds) is self-evidently non-sensical but because it has arisen through referential opacity, and hence behaves incoherently. — bongo fury
And it seems clear that even if Fred Smith is the winner, he is not the winner in every possible world, and so it is not true that there is a player (who happens to be Fred) for whom it is necessarily true that they are the winner....one player of whom it may be said to be necessary that he win. — Quine p.147
Might be worth considering this article, perhaps after Quine. On a quick look it seems more polemic than analytic. On my browser pp40-41are missing. But perhaps we will find the answer to the question I;ve been asking for a few threads now, what exactly is an essence?David Oderberg also writes a fair bit on this topic, e.g. "How to Win Essence Back from Essentialists." — Leontiskos
So are there referentially opaque modal contexts? By that we might understand, are there modal contexts were substitution salva veritate fails?In a word, we cannot in general properly quantify into referentially opaque contexts. — p.148
Notice that this is not at all the same thing as saying, "You can't understand 'water' without knowing that water is composed of H20". Necessity, as Kripke shows us, may be a feature of either analytic or synthetic statements. So what gives "number" its peculiar type of analyticity? If statements like (3) are not true by tautology, but nor is math empirical . . . what's the best account? Would we be better off, for instance, with an argument that shows that any number x can't be the greatest number because there is no such thing? — J
(31) (∃x)(necessarily if there is life on the Evening Star then there is life on x) — p.147
Similarly, (31) was meaningless because the sort of thing x which fulfills the condition:
(34) If there is life on the Evening Star then there is life on x,
namely, a physical object, can be uniquely determined by any of various conditions, not all of which have (34) as a necessary consequence. Necessary fulfillment of (34) makes no sense as applied to a physical object x; necessity attaches, at best, only to the connection between (34) and one or another particular means of specifying x. — p.149
In that small subset of possible worlds in which Socrates is sitting, necessarily, Socrates is sitting, and modal collapse is avoided by not considering those worlds in which Socrates is not sitting, and so avoiding the situation where he is both sitting and not sitting.
But for any other set of possible worlds, Socrates will be both sitting and not sitting, and modal collapse will ensue.
Necessity can be understood as "true in all possible worlds that are accessible from a given world", and if we then restrict accessibility to only those worlds in which Socrates is sitting, then (by that definition of necessity) necessarily, Socrates is sitting.
So I think that Quine is mistaken, if he thought that collapse occurs regardless of the domain... or of accessibility — Banno
As explained above,
(30) (∃x)(x is necessarily greater than 7)
will result in modal collapse if the domain includes more than integers. — Banno
"The evening star' is a description, picking out the brightest star in the western evening sky, which for half the time is Venus. Of course, many objects might satisfy the description - Jupiter and Saturn, perhaps, when suitably positioned and Venus is visible in the morning; or Sirius, the brightest of the stars, might all be suitable candidates. But The Evening Star - capitalised as a proper name, and also called "Hesperus" - is Venus; that very thing, and not Jupiter, Saturn or Sirius. "Hesperus", then, is a rigid designator, as is "the Evening Star". — Banno
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