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System F with Width-subtyping and Record Updating
Erik Poll
In Theoretical Aspects of Computer Software (TACS'97), Sendai, Japan, pages 182-196. Springer LNCS, September 1997.Abstract
It is a well-known problem that F< - the polymorphic lambda calculus F extended with subtyping - does not provide so-called polymorphic updates, and that the standard PER model for F< does not provide interpretations for these operations. The polymorphic updates are interesting because they play an important role in some type-theoretic models of object-oriented languages. We present an extension Fwidth of system F with a restricted form of subtyping - width-subtyping - on record types, that does provide these operations. The main result is that we show it is still possible to give a PER model for this system.
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@inproceedings{217, author = {Erik Poll}, title = {System {F} with {W}idth-subtyping and {R}ecord {U}pdating}, month = {September}, year = {1997}, pages = {182-196}, keywords = {determinacy analysis, Craig interpolants}, note = {}, doi = {}, url = {http://www.cs.kent.ac.uk/pubs/1997/217}, booktitle = {Theoretical Aspects of Computer Software (TACS'97), Sendai, Japan}, publisher = {Springer LNCS}, refereed = {yes}, }