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Ideas for 'fragments/reports', 'Modality' and 'Reference and Modality'

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2 ideas

4. Formal Logic / D. Modal Logic ML / 1. Modal Logic

10928

Maybe we can quantify modally if the objects are intensional, but it seems unlikely [Quine]

5744	First-order predicate calculus is extensional logic, but quantified modal logic is intensional (hence dubious) [Melia]