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Single Idea 14686

[filed under theme 4. Formal Logic / D. Modal Logic ML / 3. Modal Logic Systems / h. System S5 ]

Full Idea

When we ignore accessibility altogether, we have finally zeroed in on S5 modal logic.

Gist of Idea

S5 modal logic ignores accessibility altogether

Source

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

Book Ref

Salmon,Nathan: 'Metaphysics, Mathematics and Meaning' [OUP 2005], p.141