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Single Idea 18853

[filed under theme 10. Modality / D. Knowledge of Modality / 4. Conceivable as Possible / a. Conceivable as possible ]

Full Idea

To a first approximation, P is correctly conceivable iff it would be conceivable for a logically ominiscient being who was fully informed about the nature of things.

Gist of Idea

A proposition is 'correctly' conceivable if an ominiscient being could conceive it

Source

Gideon Rosen (The Limits of Contingency [2006], 05)

Book Ref

'Identity and Modality', ed/tr. MacBride,Fraser [OUP 2006], p.23


A Reaction

Isn't the last bit covered by 'ominiscient'? Ah, I think the 'logically' only means they have a perfect grasp of what is consistent. This is to meet the standard problem, of ill-informed people 'conceiving' of things which are actually impossible.


The 11 ideas from 'The Limits of Contingency'

Metaphysical necessity is absolute and universal; metaphysical possibility is very tolerant [Rosen]
'Metaphysical' modality is the one that makes the necessity or contingency of laws of nature interesting [Rosen]
Something may be necessary because of logic, but is that therefore a special sort of necessity? [Rosen]
Pairing (with Extensionality) guarantees an infinity of sets, just from a single element [Rosen]
A Meinongian principle might say that there is an object for any modest class of properties [Rosen]
A proposition is 'correctly' conceivable if an ominiscient being could conceive it [Rosen]
The MRL view says laws are the theorems of the simplest and strongest account of the world [Rosen]
Combinatorial theories of possibility assume the principles of combination don't change across worlds [Rosen]
Sets, universals and aggregates may be metaphysically necessary in one sense, but not another [Rosen]
Standard Metaphysical Necessity: P holds wherever the actual form of the world holds [Rosen]
Non-Standard Metaphysical Necessity: when ¬P is incompatible with the nature of things [Rosen]