Single Idea 12184

[catalogued under 10. Modality / A. Necessity / 6. Logical Necessity]

Full Idea

If it is logically necessary that if p then q, then there is no other sense of 'necessary' in which it is not necessary that if p then q.

Gist of Idea

Logical necessity overrules all other necessities

Source

Ian McFetridge (Logical Necessity: Some Issues [1986], 1)

Book Reference

-: 'Aristotelian Society' [], p.138


A Reaction

The thesis which McFetridge proposes to defend. The obvious rival would be metaphysical necessity, and the rival claim would presumably be that things are only logically necessary if that is entailed by a metaphysical necessity. Metaphysics drives logic.