Simple second-order languages for which
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William M. Farmer
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Article
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1991
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Elsevier Science
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English
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Farmer, W.M., Simple second-order languages for which unification is undecidable, Theoretical Computer Science 87 (1991) 25-41. We improve Goldfarb's Theorem on the undecidability of the second-order unification problem. More precisely, we prove that there is a natural number n such that the unifica