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Single Idea 19029
[filed under theme 10. Modality / A. Necessity / 2. Nature of Necessity
]
Full Idea
Necessities mark the limits of the potentialities that objects have. More precisely, it is necessary that p just in case nothing has, or had, or will have a potentiality to be such that not-p.
Gist of Idea
It is necessary that p means that nothing has the potentiality for not-p
Source
Barbara Vetter (Potentiality [2015], 6.2)
Book Ref
Vetter,Barbara: 'Potentiality: from Dispositions to Modality' [OUP 2015], p.203
A Reaction
[See Vetter's other ideas for her potentiality account of modality] If we wish to build a naturalistic account of modality (and if you don't want that then your untethered metaphysics will drift away in logical space) then this is the way to go.
The
24 ideas
with the same theme
[understanding the concept of necessity]:
12611
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Necessity makes alternatives impossible
[Aristotle]
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12381
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What is necessary cannot be otherwise
[Aristotle]
|
12734
|
Every necessary proposition is demonstrable to someone who understands
[Leibniz]
|
13828
|
Necessary truths are those provable from identities by pure logic in finite steps
[Leibniz, by Hacking]
|
12190
|
Necessity is what will be, despite any alternative suppositions whatever
[Mill]
|
22623
|
Necessity can only mean what must be, without conditions of any kind
[Mill]
|
16013
|
Nothing necessary can come into existence, since it already 'is'
[Kierkegaard]
|
24077
|
Necessity is thought to require an event, but is only an after-effect of the event
[Nietzsche]
|
7134
|
Something can be irrefutable; that doesn't make it true
[Nietzsche]
|
8375
|
'Necessary' is a predicate of a propositional function, saying it is true for all values of its argument
[Russell]
|
6099
|
Modal terms are properties of propositional functions, not of propositions
[Russell]
|
11002
|
Equating necessity with informal provability is the S4 conception of necessity
[Lewis,CI, by Read]
|
10921
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Necessity can attach to statement-names, to statements, and to open sentences
[Quine]
|
11880
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Kripke says his necessary a posteriori examples are known a priori to be necessary
[Kripke, by Mackie,P]
|
15290
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What reduces the field of the possible is a step towards necessity
[Harré/Madden]
|
8822
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Statements about necessities need not be necessarily true
[Pollock]
|
15086
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Absolute necessity might be achievable either logically or metaphysically
[Hale]
|
11001
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Equating necessity with truth in every possible world is the S5 conception of necessity
[Read]
|
5738
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We may be sure that P is necessary, but is it necessarily necessary?
[Melia]
|
11083
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A sentence is necessary if it is true in a set of worlds, and nonfalse in the other worlds
[Hanna]
|
16346
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Maybe necessity is a predicate, not the usual operator, to make it more like truth
[Halbach]
|
17742
|
Scotus based modality on semantic consistency, instead of on what the future could allow
[Walicki]
|
19008
|
The modern revival of necessity and possibility treated them as special cases of quantification
[Vetter]
|
19029
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It is necessary that p means that nothing has the potentiality for not-p
[Vetter]
|