Tense And Modality
Conditionals may be viewed as relations between propositions, as we have seen, in striking analogy with the extensional treatment of determiners and quantifiers. But the more traditional intensional constructions are rather operators on propositions, such as modality or tense. Still, given the generalization made in Chapter 3 to arbitrary extensional categories, a similar move is possible for intensional notions. Instead of pursuing this topic in its full generality, we present two concrete cases.
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