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Single Idea 15086

[filed under theme 10. Modality / A. Necessity / 2. Nature of Necessity ]

Full Idea

Maybe peaceful co-existence between absolute logical necessity and absolute metaphysical necessity can be secured, ..and absolute necessity is their union. ...However, a truth would then qualify as absolutely necessary in two quite different ways.

Gist of Idea

Absolute necessity might be achievable either logically or metaphysically

Source

Bob Hale (Absolute Necessities [1996], 4)

Book Ref

-: 'Philosophical Perspectives' [-], p.101


A Reaction

Hale is addressing a really big question for metaphysic (absolute necessity) which others avoid. In the end he votes for rejecting 'metaphysical' necessity. I am tempted to vote for rejecting logical necessity (as being relative). 'Absolute' is an ideal.


The 8 ideas from 'Absolute Necessities'

Maybe not-p is logically possible, but p is metaphysically necessary, so the latter is not absolute [Hale]
A strong necessity entails a weaker one, but not conversely; possibilities go the other way [Hale]
'Relative' necessity is just a logical consequence of some statements ('strong' if they are all true) [Hale]
Metaphysical necessity says there is no possibility of falsehood [Hale]
'Broadly' logical necessities are derived (in a structure) entirely from the concepts [Hale]
Absolute necessity might be achievable either logically or metaphysically [Hale]
Logical necessities are true in virtue of the nature of all logical concepts [Hale]
Conceptual necessities are made true by all concepts [Hale]