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New posts in monoids
non-lawful Monoid instances for building up AST not considered harmful?
Apr 30, 2021
haskell
abstract-syntax-tree
interpreter
typeclass
monoids
Haskell: How to write a `Monoid` instance for something that depends on parameters
Oct 28, 2022
haskell
dependent-type
monoids
How can I express foldr in terms of foldMap for type-aligned sequences?
Apr 25, 2022
haskell
types
monoids
type-variables
foldable
Why would my datatype need to an instance of Monoid to use this lens?
Feb 26, 2022
haskell
lenses
monoids
haskell-lens
Why "and []" is True and "or []" is False
Nov 06, 2022
haskell
monoids
How to use the maybe monoid and combine values with a custom operation, easily?
Jul 12, 2021
haskell
monoids
How is "a monoid on applicative functors" different than "a monoid in the category of endofunctors"?
Nov 20, 2022
monads
functor
applicative
category-theory
monoids
Write a Maximum Monoid using Maybe in Haskell
Dec 19, 2018
haskell
monoids
Don't understand notation of morphisms in Monoid definition
May 15, 2021
haskell
category-theory
monoids
Haskell: duplicated functions (+) and (++), mappend
Feb 16, 2022
haskell
operator-overloading
monads
typeclass
monoids
What is the main difference between Free Monoid and Monoid?
Oct 15, 2022
haskell
functional-programming
category-theory
monoids
Is there a standard abstraction for semirings or monoids in C++?
Feb 14, 2022
c++
math
boost
monoids
Scala PartialFunction can be Monoid?
Feb 25, 2021
scala
functional-programming
scalaz
partialfunction
monoids
Why does the Alternative typeclass need to be a sub-class of Control.Applicative
Nov 30, 2021
haskell
applicative
monoids
alternative-functor
Why is there not 'Alternative' instance for 'Control.Applicative.Const'
Feb 24, 2020
haskell
applicative
monoids
alternative-functor
Understanding Data.Functor.Constant constructor and applicative laws
Sep 18, 2022
haskell
constants
functor
applicative
monoids
What's the practical value of all those newtype wrappers in `Data.Monoid`?
Sep 14, 2022
haskell
monoids
Monoids and Num in Haskell
Sep 13, 2022
haskell
monoids
Examples of monoids/semigroups in programming
Sep 05, 2022
language-agnostic
math
computer-science
monoids
abstract-algebra
monoid vs monad in Scala
Sep 04, 2022
scala
functional-programming
monads
monoids
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