Bounded Quantification Is Undecidable
F≤ is a typed λ-calculus with subtyping and bounded second-order polymorphism. First introduced by Cardelli and Wegner, it has been widely studied as a core calculus for type systems with subtyping. We use a reduction from the halting problem for two-counter Turing machines to show that the subtypin...
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Veröffentlicht in: | Information and computation 1994-07, Vol.112 (1), p.131-165 |
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Format: | Artikel |
Sprache: | eng |
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Online-Zugang: | Volltext |
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Zusammenfassung: | F≤ is a typed λ-calculus with subtyping and bounded second-order polymorphism. First introduced by Cardelli and Wegner, it has been widely studied as a core calculus for type systems with subtyping. We use a reduction from the halting problem for two-counter Turing machines to show that the subtyping and typing relations of F≤ are undecidable. |
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ISSN: | 0890-5401 1090-2651 |
DOI: | 10.1006/inco.1994.1055 |