How can fmap be used with a data constructor?...

Understanding functor laws: is this a functor?...

How does one state that a module implements an interface so that a type in the signature is the same...

Perfectly forwarding function wrapper?...

Why adding import `import cats.instances.future._` will result an compilation error for implicit Fun...

Why is a -> a not a functor?...

Changing indices within a Haskell tree...

Recursive functor instance in haskell...

Why should Applicative inherit from Functor?...

Store shared pointer in lambda to keep it alive...

scala functors taking arithmetic operators as argument...

Can Nullable be used as a functor in C#?...

How to show that a monad is a functor and an applicative functor?...

Understanding a Comparator functor for STL...

Haskell : Couldn't match expected type ‘a -> a’ with actual type ‘Failable (a -> a)’...

Difference in capability between fmap and bind?...

What are get() and unit() in this definition of applicative functor?...

Variant types as module/functor signature constraints in ocaml...

Making (a, a) a Functor...

Data.AVL.map that changes value type...

Understanding Data.Functor.Constant constructor and applicative laws...

Can SML functors take non-structure arguments (Ullman 8.3.4)?...

double type Functor definition refused...

Calling generic function with Functor using subclass (cats/scalaz)...

Passing Inherited Class's Member Functor...

function object that converts string to uppercase...

mapping operation for heterogenous List...

How do I make a functor out of an arbitrary function?...

Which Haskell Functors are equivalent to the Reader functor...

OCaml use signature defined outside functor to limit visibility into produced module...