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

How is `arr fst` a natural transformation?...

Why do Static Arrows generalise Arrows?...

Why is ArrowApply an only option when proving equivalence with Monads?...

Why does mutual yielding make ArrowApply and Monads equivalent, unlike Arrow and Applicative?...

Arrowizing the Store comonad...

What's the relationship between profunctors and arrows?...

Is (\f -> fmap f id) always equivalent to arr?...

Control.Category, what does >>> and <<< mean?...

Arrow without arr...

Arrows are exactly equivalent to applicative functors?...

Difference between initial and terminal objects in a category...

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

Is there a non-identity monad morphism M ~> M that is monadically natural in M?...

How to define free monads and cofree comonads in Lean4?...

How can I implement a Functor trait in Rust?...

Don't understand notation of morphisms in Monoid definition...

Is this property of a functor stronger than a monad?...

Products and coproducts in posets...

Bifunctors in Haskell vs in category theory...

Forgetting Cofree annotations using a catamorphism...

What are free monads?...

cats effect evaluates only the final for coprehension and ignores rest...

Is Last a free monoid?...

Why are monad transformers different to stacking monads?...

Deriving a monad from a cofree comonad...

How do I prove two applications of the absurd pattern result in the same in Cubical Agda?...

Can one simplify the Codensity monad on Maybe?...

In Scala cats-laws, why is the functor composition law different from canonical definition?...

Why doesn't Haskell's `Functor` instance define a "return-like" function?...