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fix type instance conflict #3

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fix type instance conflict #3

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4 changes: 2 additions & 2 deletions Control/Type/Operator.hs
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Original file line number Diff line number Diff line change
Expand Up @@ -37,7 +37,7 @@ infixr 5 ^>
type (<^) a b = (^>) b a
infixr 5 <^

-- | Infix application.
-- | Infix application.5
--
-- @
-- f :: Either String $ Maybe Int
Expand Down Expand Up @@ -94,7 +94,7 @@ infixl 9 <=>
-- @
type family (<+>) (a :: k1) (b :: k2) :: Constraint
type instance (<+>) _ [] = (() :: Constraint)
type instance (<+>) [] _ = (() :: Constraint)
-- type instance (<+>) [] _ = (() :: Constraint)
type instance (<+>) (c ': cs) (a :: Type) = (c a, a <+> cs)
type instance (<+>) c (a ': as) = (c a, c <+> as)
infixl 9 <+>
Expand Down