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Ideas for 'Universals', 'Propositions' and 'What Does It Take to Refer?'

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4. Formal Logic / E. Nonclassical Logics / 6. Free Logic

10455	Free logic at least allows empty names, but struggles to express non-existence [Bach]
	Full Idea: Unlike standard first-order logic, free logic can allow empty names, but still has to deny existence by either representing it as a predicate, or invoke some dubious distinction such as between existence and being.
	From: Kent Bach (What Does It Take to Refer? [2006], 22.2 L1)