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New posts in category-theory

Is there a Codensity MonadPlus that asymptotically optimizes a sequence of MonadPlus operations?

What type corresponds to a xor b in type theory?

Are the "natural transformations" we apply on Coyoneda to get a Functor actually "natural transformations"?

haskell category-theory

Is the concept of an "interleaved homomorphism" a real thing?

List based on right Kan extension

haskell category-theory

Where does the name "section" come from for a partially applied infix operator?

haskell category-theory

What mathematical duals are there in OO programming?

Structurally enforced Free Alternative, without left distributivity

Functor is for (a -> b) -> (f a -> f b), what is for (Category c) => c a b -> c (f a) (f b)?

haskell category-theory

Representable Functor isomorphic to (Bool -> a)

Which Haskell Functors are equivalent to the Reader functor

Are codatatypes really terminal algebras?

What is the 'minimum' needed to make an Applicative a Monad?

Is there a generalization of these Free-like constructions?

How do I show that a Haskell type is inhabited by one and only one function?

Open Type Level Proofs in Haskell/Idris

What are "vocabulary types", and how many exist?

High-Order ScalaCheck

Is there a theory that combines category theory/abstract algebra and computational complexity?