Top 5 Haskell category-theory Projects
Lambda the ultimate Pattern Factory: FP, Haskell, Typeclassopedia vs Software Design PatternsProject mention: design patterns | reddit.com/r/haskell | 2022-07-03
You can have a look at this for a beginning primer https://github.com/thma/LtuPatternFactory
A categorical programming language with effects
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Library of categories, with categorical constructions on themProject mention: Monthly Hask Anything (October 2021) | reddit.com/r/haskell | 2021-10-02
Even a fairly simple statement like "F preserves direct limits over N" is basically impossible to express like this. You can step further from Hask and work at the type level until the very end (which I believe is the approach taken by data-category), you can resign yourself to only expressing things that can be "defunctionalized" (an appropriate use of the term, I think, if not a correct one) down to Haskell functions, which gets you (Co)Yoneda, Lan, Ran, etc. in the general case and I think Traversable in this particular instance, or you can take some intermediate approach with constrained functions and/or explicit witnesses in your data types, but you can't make proper category theory "just work" the way it should.
Provides free functors that are adjoint to functors that forget class constraints.
:curly_loop: Split Morphisms
Haskell category-theory related posts
Lawvere: A categorical programming language with effects
1 project | news.ycombinator.com | 18 Jul 2021
Red and blue functions are a good thing
4 projects | news.ycombinator.com | 26 Apr 2021
Lawvere: a new member of the categorical branch of the concatenative family
1 project | reddit.com/r/concatenative | 1 Mar 2021
Lawvere - a categorical programming language with effects
3 projects | reddit.com/r/ProgrammingLanguages | 17 Feb 2021
Haskell: The Bad Parts, part 2 (2020)
7 projects | news.ycombinator.com | 9 Feb 2021
Python is a UI language there
3 projects | reddit.com/r/ProgrammingLanguages | 4 Feb 2021
What are some of the best open-source category-theory projects in Haskell? This list will help you:
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