Lax Logical Relations


Plotkin, G., Power, J., Sannella, D. and Tennent, R., 2002. Lax Logical Relations. In: Automata, Languages and Programming: 27th International Colloquium, ICALP 2000 Geneva, Switzerland, July 9–15, 2000 Proceedings. Vol. 1853. , pp. 85-102. (Lecture Notes in Computer Science)

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Lax logical relations are a categorical generalisation of logical relations; though they preserve product types, they need not preserve exponential types. But, like logical relations, they are preserved by the meanings of all lambda-calculus terms.We show that lax logical relations coincide with the correspondences of Schoett, the algebraic relations of Mitchell and the pre-logical relations of Honsell and Sannella on Henkin models, but also generalise naturally to models in cartesian closed categories and to richer languages.


Item Type Book Sections
CreatorsPlotkin, G., Power, J., Sannella, D. and Tennent, R.
DepartmentsFaculty of Science > Computer Science
ID Code26474


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