more from Nathan Salmon

Single Idea 14677

[catalogued under 10. Modality / A. Necessity / 5. Metaphysical Necessity]

Full Idea

It is held that it is the hallmark of metaphysical necessity is that it is completely unrestricted, the limiting case of restricted necessity, with no restrictions whatever. A proposition is necessary only if it is true in absolutely every world whatever.

Gist of Idea

Metaphysical necessity is said to be unrestricted necessity, true in every world whatsoever


Nathan Salmon (The Logic of What Might Have Been [1989], II)

Book Reference

Salmon,Nathan: 'Metaphysics, Mathematics and Meaning' [OUP 2005], p.133

A Reaction

This is the standard picture which leads to the claim that S5 modal logic is appropriate for metaphysical necessity, because there are no restrictions on accessibility. Salmon raises objections to this conventional view.