Popularity
4.9
Declining
Activity
0.0
Stable
9
3
0

Monthly Downloads: 49
Programming language: Haskell
License: BSD 3-clause "New" or "Revised" License
Tags: Math     Data     Generics    

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README

Algebraic classes are type classes where all the methods return a value of the same type, which is also the class parameter. Examples from base are Num and Monoid.

F-algebras are functions f a -> a, where the functor f is called the signature, and the type a the carrier.

This package relates these 2 concepts, and can create conversions between the two using Template Haskell. More specifically, it can generate:

  • signatures from algebraic classes
  • instances of algebraic classes from F-algebras.

This is useful because type classes are more commonly used in Haskell than F-algebras, but F-algebras are easier to work with, because they are just functions.