argues it is not only predicates that carve reality at its joints, but expressions of any logical or grammatical category – including quantifiers, operators, and sentential connectives. Even so, he denies these expressions pick out entities in the world; instead, they only represent the world’s “structure”. I argue that this distinction is not viable, and that Sider’s ambitious programme requires an exotic ontology – and even a Fregean “third realm” – of logical entities.
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