Dependent sum type

Version on this page:0.4
LTS Haskell 9.17:0.4
Stackage Nightly 2017-12-10:0.4
Latest on Hackage:0.4
PublicDomain licensed and maintained by James Cook

Module documentation for 0.4

A dependent sum is a generalization of a particular way of thinking about the Either type. Either a b can be thought of as a 2-tuple (tag, value), where the value of the tag determines the type of the value. In particular, either tag = Left and value :: a or tag = Right and value :: b.

This package allows you to define your own dependent sum types by using your own "tag" types.

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