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Single Idea 14629

[filed under theme 10. Modality / C. Sources of Modality / 1. Sources of Necessity ]

Full Idea

If we ask why A must be the case, and A is then proved from B, that explains it if B must be so. If the eventual source cites some truth F, then if F just is so, there is strong pressure to feel that the original necessity has not been explained.

Gist of Idea

If we are told the source of necessity, this seems to be a regress if the source is not already necessary

Source

Simon Blackburn (Morals and Modals [1987], 1)

Book Ref

'Metaphysics - An Anthology', ed/tr. Sosa,E. /Kim,J. [Blackwell 1999], p.635


A Reaction

[compressed] Ross Cameron wrote a reply to this which I like. I'm fishing for the idea that essence is the source of necessity (as Kit Fine says), but that essence itself is not necessary (as only I say, apparently!).


The 10 ideas from Simon Blackburn

If we are told the source of necessity, this seems to be a regress if the source is not already necessary [Blackburn]
If something underlies a necessity, is that underlying thing necessary or contingent? [Blackburn, by Hale/Hoffmann,A]
The main objection to intuitionism in ethics is that intuition is a disguise for prejudice or emotion [Blackburn]
Critics of prescriptivism observe that it is consistent to accept an ethical verdict but refuse to be bound by it [Blackburn]
A true belief might be based on a generally reliable process that failed on this occasion [Blackburn]
Visual sense data are an inner picture show which represents the world [Blackburn]
Some philosophers always want more from morality; for others, nature is enough [Blackburn]
The word 'respect' ranges from mere non-interference to the highest levels of reverence [Blackburn]
Akrasia is intelligible in hindsight, when we revisit our previous emotions [Blackburn]
Asserting a necessity just expresses our inability to imagine it is false [Blackburn]