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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 Ref
-: '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.