Haskell, implementing Monoids. What is Semigroup and why does it act so weird?...

Why is there no alternative instance for Either but a semigroup that behaves similarily to alternati...

Is there a class that models "patches"?...

Haskell newtype that flips semigroup operation?...

How to add custom Semigroup instance for Int...

What does Data.Semigroup ((<>)) do in this Haskell sort code?...

Semigroup instace for Data.Map...

Creating a Semigroup data type instance in Haskell...

Use named instances for other instances...

What is the purpose of the ArgMin and ArgMax type synonyms in Data.Semigroup?...

Why does Semigroup has an Option type and behave like a neutral element in Monoid?...

Make a parametrized data type instance of Semigroup...

Relation between the Semigroupoid and Semigroup classes...

Semigroup typeclass (Either) with slightly altered combine...

Using Validated from the Cats library in Scala...

Hiding typeclass instance declarations while importing in Haskell...

"mayBeMempty" function for a Semigroup...

How to write `Semigroup` instance and their `quickCheck`s on parameterized types?...

Scalaz implementation of Semigroup using advanced Scala features...

Keeping IO lazy under append...

Defining a Semigroup instance that depends on itself...

Computing all infix products for a monoid / semigroup...

mempty with different definition depending on whether mempty is left or right arg?...

Why is there no >=> semigroup for A => M[A] in Scalaz?...

Why there is no Semigroup instance for TrieMap in scalaz...

Can you formulate a monoid or semigroup for the radix sort?...

How to get all algebraic associative operations on a finite set by efficient algorithm?...

Can you formulate the Bubble sort as a monoid or semigroup?...