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Single Idea 11084

[from 'Rationality and Logic' by Robert Hanna, in 10. Modality / A. Necessity / 6. Logical Necessity ]

Full Idea

Logical necessity is the truth of a sentence by virtue of logical laws or intrinsic conceptual connections alone, and thus true in all logically possible worlds. Put in traditional terms, logical necessity is analyticity.

Gist of Idea

Logical necessity is truth in all logically possible worlds, because of laws and concepts

Source

Robert Hanna (Rationality and Logic [2006], 6.6)

Book Reference

Hanna,Robert: 'Rationality and Logic' [MIT 2006], p.196