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Single Idea 9334

[filed under theme 12. Knowledge Sources / A. A Priori Knowledge / 9. A Priori from Concepts ]

Full Idea

If we stipulate the meaning of 'the number of x's' so that it makes Hume's Principle true, we must accept Hume's Principle. But a precondition for this stipulation is that Hume's Principle be accepted a priori.

Clarification

Hume's Principle defines numbers by one-to-one correspondences

Gist of Idea

If we stipulate the meaning of 'number' to make Hume's Principle true, we first need Hume's Principle

Source

Paul Horwich (Stipulation, Meaning and Apriority [2000], §9)

Book Ref

'New Essays on the A Priori', ed/tr. Boghossian,P /Peacocke,C [OUP 2000], p.163


A Reaction

Yet another modern Quinean argument that all attempts at defining things are circular. I am beginning to think that the only a priori knowledge we have is of when a group of ideas is coherent. Calling it 'intuition' might be more accurate.


The 15 ideas with the same theme [a priori knowledge only arises from our concepts]:

To name something, you must already have an idea of what it is [Epicurus, by Diog. Laertius]
Relations of ideas are known by thought, independently from the world [Hume]
For Kant analytic knowledge needs complex concepts, but the a priori can rest on the simple [Coffa on Kant]
With large numbers it is obvious that we could never find the sum by analysing the concepts [Kant]
A priori intuitions can only concern the objects of our senses [Kant]
All a priori knowledge deals with the relations of universals [Russell]
We can know some general propositions by universals, when no instance can be given [Russell]
We explain away a priori knowledge, not as directly empirical, but as indirectly holistically empirical [Devitt]
A priori knowledge is analytic - the structure of our concepts - and hence unimportant [Papineau]
Knowledge is a priori if the experience giving you the concepts thus gives you the knowledge [Kitcher]
Meanings and concepts cannot give a priori knowledge, because they may be unacceptable [Horwich]
If we stipulate the meaning of 'number' to make Hume's Principle true, we first need Hume's Principle [Horwich]
Red and green being exclusive colours seems to be rationally graspable but not analytic [Audi,R]
The concepts needed for a priori thought may come from experience [Audi,R]
Examining accurate, justified or grounded concepts brings understanding of the world [Jenkins]