Full Idea
The simplest modal account is that logical consequence is just necessary consequence; another modal account says that logical consequences are modal consequences that involve only logical words essentially.
Gist of Idea
Modal accounts of logical consequence are simple necessity, or essential use of logical words
Source
Theodore Sider (Writing the Book of the World [2011], 12.3)
Book Reference
Sider,Theodore: 'Writing the Book of the World' [OUP 2011], p.272
A Reaction
[He cites Quine's 'Carnap and Logical Truth' for the second idea] Sider is asserting that Humeans like him dislike modality, and hence need a nonmodal account of logical consequence.
Related Idea
Idea 11148 Deduction is when we suppose one thing, and another necessarily follows [Aristotle]