Top "Category-theory" questions

Category theory is a branch of abstract mathematics concerned with exposing and describing the underlying structure of logical and mathematical systems.

A monad is just a monoid in the category of endofunctors, what's the problem?

Who first said the following? A monad is just a monoid in the category of endofunctors, what's the problem? And …

haskell monads category-theory monoids
What are free monads?

I've seen the term Free Monad pop up every now and then for some time, but everyone just seems to …

haskell monads category-theory free-monad
What does "coalgebra" mean in the context of programming?

I have heard the term "coalgebras" several times in functional programming and PLT circles, especially when the discussion is about …

scala haskell functional-programming category-theory recursion-schemes
Real-world applications of zygohistomorphic prepromorphisms

Yes, these ones: {-#LANGUAGE TypeOperators, RankNTypes #-} import Control.Morphism.Zygo import Control.Morphism.Prepro import Control.Morphism.Histo …

haskell functional-programming category-theory