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New posts in typeclass
Why is `succ i` valid where `i :: Num a => a` (and not an `Enum a`)?
Jul 30, 2026
haskell
types
typeclass
ghci
ambiguity check and liberal coverage condition failures for code working under GHC 7.6
Jul 30, 2026
haskell
ghc
typeclass
typechecking
Haskell class dependencies
Jul 28, 2026
haskell
typeclass
Using a quantified type equality constraint from the instance constraints
Jul 28, 2026
haskell
typeclass
type-level-computation
clash
Haskell - class constraints in typeclass definitions
Jul 26, 2026
haskell
typeclass
Multiple implementations for the same trait of the same type in Rust
Jul 26, 2026
rust
traits
typeclass
Using subclass implementation in the definition of superclass functions
Jul 18, 2026
haskell
functional-programming
subclass
typeclass
class-hierarchy
Haskell generic typeclass with list
Jul 13, 2026
haskell
generics
typeclass
Superclass constraints vs. instance declarations in Haskell
Jul 13, 2026
haskell
types
typeclass
In Shapeless, can I supply an instance of `LabelledGeneric` for non case classes that will enable automatic derivation of typeclass instances?
Jul 11, 2026
scala
code-generation
typeclass
shapeless
How to define an typeclass instance in Purescript without redundant methods
Jul 09, 2026
typeclass
purescript
Mimicking Haskell canonicity (one-instance only) of typeclasses in Agda
Jul 06, 2026
haskell
normalization
typeclass
agda
Can I discharge a constraint, if I know the class is solvable for all types of a kind?
Jul 01, 2026
haskell
typeclass
Derive typeclass instances for opaque types in Scala 3
Jul 01, 2026
scala
typeclass
scala-3
deriving
derivingvia
How to specify a type family with multiparameter injectivity?
Jul 01, 2026
haskell
typeclass
type-constraints
type-families
Eq instance has some strange comparisons
Jul 01, 2026
haskell
comparison
ghc
typeclass
deriving
Can a polymorphic constant be mapped over a list of *types*?
Jun 28, 2026
haskell
typeclass
Applying a function to an arbitrarily long list of arguments
Jun 24, 2026
haskell
typeclass
variadic
function-composition
What is the F# answer to Haskell's typeclasses and OCaml's functors? [duplicate]
Jun 26, 2026
f#
typeclass
gadt
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