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Single Idea 12428
[filed under theme 10. Modality / D. Knowledge of Modality / 1. A Priori Necessary
]
Full Idea
There are plenty of necessary truths that we are unable to express, let alone know a priori.
Gist of Idea
Many necessities are inexpressible, and unknowable a priori
Source
Philip Kitcher (A Priori Knowledge Revisited [2000], §II)
Book Ref
'New Essays on the A Priori', ed/tr. Boghossian,P /Peacocke,C [OUP 2000], p.69
A Reaction
This certainly seems to put paid to any simplistic idea that the a priori and the necessary are totally coextensive. We might, I suppose, claim that all necessities are a priori for the Archangel Gabriel (or even a very bright cherub). Cf. Idea 12429.
Related Idea
Idea 12429
Knowing our own existence is a priori, but not necessary [Kitcher]
The
22 ideas
with the same theme
[knowing what must be, just through thought]:
2301
|
We know by thought that what is done cannot be undone
[Descartes]
|
12553
|
Some of our ideas contain relations which we cannot conceive to be absent
[Locke]
|
2112
|
Truths of reason are known by analysis, and are necessary; facts are contingent, and their opposites possible
[Leibniz]
|
17079
|
Proofs of necessity come from the understanding, where they have their source
[Leibniz]
|
19432
|
Intelligible truth is independent of any external things or experiences
[Leibniz]
|
23461
|
Kant thought worldly necessities are revealed by what maths needs to make sense
[Kant, by Morris,M]
|
14710
|
Necessity is always knowable a priori, and what is known a priori is always necessary
[Kant, by Schroeter]
|
16256
|
For Kant metaphysics must be necessary, so a priori, so can't be justified by experience
[Kant, by Maudlin]
|
5524
|
Maths must be a priori because it is necessary, and that cannot be derived from experience
[Kant]
|
23495
|
The tautologies of logic show the logic of language and the world
[Wittgenstein]
|
9169
|
A statement can be metaphysically necessary and epistemologically contingent
[Putnam]
|
15101
|
Once you give up necessity as a priori, causal necessity becomes the main type of necessity
[Shoemaker]
|
4728
|
Kripke separates necessary and a priori, proposing necessary a posteriori and contingent a priori examples
[Kripke, by O'Grady]
|
16990
|
A priori = Necessary because we imagine all worlds, and we know without looking at actuality?
[Kripke]
|
15228
|
Necessity and contingency are separate from the a priori and the a posteriori
[Harré/Madden]
|
2526
|
Philosophers regularly confuse failures of imagination with insights into necessity
[Dennett]
|
12428
|
Many necessities are inexpressible, and unknowable a priori
[Kitcher]
|
20476
|
If the necessary is a priori, so is the contingent, because the same evidence is involved
[Casullo]
|
13956
|
Kripke is often taken to be challenging a priori insights into necessity
[Chalmers]
|
9598
|
Modal thinking isn't a special intuition; it is part of ordinary counterfactual thinking
[Williamson]
|
21621
|
We can't infer metaphysical necessities to be a priori knowable - or indeed knowable in any way
[Williamson]
|
4719
|
Maybe developments in logic and geometry have shown that the a priori may be relative
[O'Grady]
|