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Single Idea 14649

[filed under theme 10. Modality / A. Necessity / 4. De re / De dicto modality ]

Full Idea

To explain the 'de re' via the 'de dicto' is to provide a rule enabling us to find, for each de re proposition, an equivalent de dicto proposition.

Gist of Idea

Can we find an appropriate 'de dicto' paraphrase for any 'de re' proposition?

Source

Alvin Plantinga (De Re and De Dicto [1969], p.41)

Book Ref

Plantinga,Alvin: 'Essays in the Metaphysics of Modality' [OUP 2003], p.41


A Reaction

Many 'de dicto' paraphrases will change the modality of a 'de re' statement, so the challenge is to find the right equivalent version. Plantinga takes up this challenge. The 'de dicto' statement says the object has the property, and must have it.


The 14 ideas with the same theme [modes of reality, or modes of statement about it]:

A deduction is necessary if the major (but not the minor) premise is also necessary [Aristotle]
The de dicto-de re modality distinction dates back to Abelard [Abelard, by Orenstein]
To be necessarily greater than 7 is not a trait of 7, but depends on how 7 is referred to [Quine]
A de dicto necessity is true in all worlds, but not necessarily of the same thing in each world [Cresswell]
Expressing modality about a statement is 'de dicto'; expressing it of property-possession is 'de re' [Plantinga]
'De dicto' true and 'de re' false is possible, and so is 'de dicto' false and 'de re' true [Plantinga]
Can we find an appropriate 'de dicto' paraphrase for any 'de re' proposition? [Plantinga]
'De re' modality is as clear as 'de dicto' modality, because they are logically equivalent [Plantinga]
De re modal predicates are ambiguous [Lewis, by Rudder Baker]
De dicto necessity has linguistic entities as their source, so it is a type of de re necessity [Shalkowski]
De re modal formulae, unlike de dicto, are sensitive to transworld identities [Forbes,G]
De re modality seems to apply to objects a concept intended for sentences [Burgess]
Evaluation of de dicto modalities does not depend on the identity of its objects [Sidelle]
'De re' modality is about things themselves, 'de dicto' modality is about propositions [Melia]