Data.Type.Set
data Set n
type Union s t
type Unionable s t
union
append
type family Sort xs :: [k]
class Sortable xs
type family Append s t :: [k]
class Split s t st
type family Cmp a b :: Ordering
type family Nub t
class Nubable t
type AsSet s
asSet
type IsSet s
class Subset s t
data k :-> v
data Var k