DocumentCode
2894354
Title
Functional parametricity
Author
Freyd, P.J. ; Robinson, E.P. ; Rosolini, G.
Author_Institution
Dept. of Maths., Pennsylvania Univ., Philadelphia, PA, USA
fYear
1992
fDate
22-25 Jun 1992
Firstpage
444
Lastpage
452
Abstract
The authors consider the idea of treating a parametrized type as an arbitrary functor from some parametrizing category to a category of types, and giving elements semantics as natural transformations. They show that under reasonable hypotheses this is only possible when the parametrizing category is a groupoid. This suggests a semantics for a semiparametric form of polymorphism. They discuss the interpretation of this form of parametricity in a PER model, and show that it coincides with the ostensibly stronger form derived from dinaturality
Keywords
data structures; group theory; programming theory; PER model; data types; elements semantics; groupoid; natural transformations; parametrized type; parametrizing category; polymorphism; Context modeling;
fLanguage
English
Publisher
ieee
Conference_Titel
Logic in Computer Science, 1992. LICS '92., Proceedings of the Seventh Annual IEEE Symposium on
Conference_Location
Santa Cruz, CA
Print_ISBN
0-8186-2735-2
Type
conf
DOI
10.1109/LICS.1992.185555
Filename
185555
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