Peyton Jones, Simon
Email Address
ORCID
Disciplines
Search Results
Now showing 1 - 1 of 1
Publication Closed Type Families With Overlapping Equations (Extended Version)(2013-11-15) Eisenberg, Richard A.; Vytiniotis, Dimitrios; Peyton Jones, Simon; Weirich, StephanieOpen, type-level functions are a recent innovation in Haskell that move Haskell towards the expressiveness of dependent types, while retaining the look and feel of a practical programming language. This paper shows how to increase expressiveness still further, by adding closed type functions whose equations may overlap, and may have non-linear patterns over an open type universe. Although practically useful and simple to implement, these features go beyond conventional dependent type theory in some respects, and have a subtle metatheory.