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New posts in typeclass
Why do instances in PureScript have names?
Sep 22, 2025
typeclass
purescript
Is this weaker semialign a known abstraction?
Sep 20, 2025
haskell
typeclass
What instance of `Num` is used with literals e.g. in `print 1`?
Sep 17, 2025
haskell
typeclass
How to write a Representable instance using only Distributive properties?
Sep 16, 2025
haskell
typeclass
representable
distributive
When to use Multiparameter type classes in Haskell?
Sep 13, 2025
haskell
typeclass
Higher-kinded types—why possible Scala but not F#? [closed]
Sep 12, 2025
scala
f#
typeclass
higher-kinded-types
Generic way to check if range contains value in Scala
Sep 08, 2025
scala
generics
typeclass
How do the implementation of Eq typeclass function: x == y = not (x /= y) x /= y = not (x == y) work?
Mar 25, 2023
haskell
recursion
typeclass
mutual-recursion
How to state that a type variable in a newtype statement is of a type that belongs to some type class?
Mar 23, 2023
haskell
typeclass
newtype
Overlapping instances for between Double and Integral types
Mar 22, 2023
haskell
typeclass
Type constraints on typeclass instances in Haskell?
Mar 20, 2023
haskell
typeclass
type-constraints
Is there such a thing as a 'not' constraint operator?
Mar 20, 2023
haskell
constraints
typeclass
Why is there no type class for monoids on functors in Haskell?
Mar 19, 2023
haskell
typeclass
functor
monoids
alternative-functor
Avoiding use of unsafeCoerce in Hughes' list functor instance
Mar 18, 2023
haskell
typeclass
functor
coercion
difference-lists
Nim - Create sequence of objects which implement a method
Mar 15, 2023
interface
typeclass
nim-lang
multimethod
How to interpret this Haskell code that type checks?
Mar 15, 2023
haskell
typeclass
Role of functional dependency in `Unfoldable` typeclass of Haskell Collection API
Mar 13, 2023
haskell
typeclass
functional-dependencies
MonadError instance for a Free Monad
Mar 14, 2023
haskell
typeclass
free-monad
overlapping-instances
Why can't we have Random class instances derived for enumerations in Haskell?
Mar 07, 2023
haskell
enums
typeclass
deriving
Why can't Haskell unify my types when using a constraint as class parameter?
Sep 02, 2025
haskell
constraints
typeclass
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