Internal Parametricity, without an Interval
(2024)
Journal Article
Altenkirch, T., Chamoun, Y., Kaposi, A., & Shulman, M. (2024). Internal Parametricity, without an Interval. Proceedings of the ACM on Programming Languages, 8(POPL), 2340-2369. https://doi.org/10.1145/3632920
Parametricity is a property of the syntax of type theory implying, e.g., that there is only one function having the type of the polymorphic identity function. Parametricity is usually proven externally, and does not hold internally. Internalising it... Read More about Internal Parametricity, without an Interval.