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Single Idea 10931

[filed under theme 26. Natural Theory / D. Laws of Nature / 8. Scientific Essentialism / e. Anti scientific essentialism ]

Full Idea

To say an object is soluble in water is to say that it would dissolve if it were in water,..which implies that 'necessarily if x is in water then x dissolves'. Yet we do not know if there is a suitable sense of 'necessarily' into which we can so quantify.

Gist of Idea

We can't say 'necessarily if x is in water then x dissolves' if we can't quantify modally

Source

Willard Quine (Reference and Modality [1953], §4)

Book Ref

Quine,Willard: 'From a Logical Point of View' [Harper and Row 1963], p.158


A Reaction

This is why there has been a huge revival of scientific essentialism - because Krike seems to offer exacty the account which Quine said was missing. So can you have modal logic without rigid designation?


The 9 ideas from 'Reference and Modality'

Whether 9 is necessarily greater than 7 depends on how '9' is described [Quine, by Fine,K]
We can't quantify in modal contexts, because the modality depends on descriptions, not objects [Quine, by Fine,K]
Failure of substitutivity shows that a personal name is not purely referential [Quine]
Quantifying into referentially opaque contexts often produces nonsense [Quine]
To be necessarily greater than 7 is not a trait of 7, but depends on how 7 is referred to [Quine]
Maybe we can quantify modally if the objects are intensional, but it seems unlikely [Quine]
Quantification into modal contexts requires objects to have an essence [Quine]
Necessity only applies to objects if they are distinctively specified [Quine]
We can't say 'necessarily if x is in water then x dissolves' if we can't quantify modally [Quine]