First-Order Frege Theory is Undecidable

Springer Science and Business Media LLC - Tập 30 - Trang 613-616 - 2001
Warren Goldfarb1
1Department of Philosophy, Harvard University, Cambridge, U.S.A

Tóm tắt

The system whose only predicate is identity, whose only nonlogical vocabulary is the abstraction operator, and whose axioms are all first-order instances of Frege's Axiom V is shown to be undecidable.

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