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  1. data (a :: k) :~: (b :: k)

    singletons-base Data.Singletons.Base.TH

    Propositional equality. If a :~: b is inhabited by some terminating value, then the type a is the same as the type b. To use this equality in practice, pattern-match on the a :~: b to get out the Refl constructor; in the body of the pattern-match, the compiler knows that a ~ b.

  2. (:$$:) :: ErrorMessage' s -> ErrorMessage' s -> ErrorMessage' s

    singletons-base Data.Singletons.Base.TypeError

    Stack two pieces of error message on top of each other.

  3. data (a6989586621680219214 :: ErrorMessage' s) :$$:@#@$$ (b :: TyFun ErrorMessage' s ErrorMessage' s)

    singletons-base Data.Singletons.Base.TypeError

    No documentation available.

  4. type family (a6989586621680219214 :: ErrorMessage' s) :$$:@#@$$$ (a6989586621680219215 :: ErrorMessage' s) :: ErrorMessage' s

    singletons-base Data.Singletons.Base.TypeError

    No documentation available.

  5. (:%$$:) :: forall (e1 :: ErrorMessage' Symbol) (e2 :: ErrorMessage' Symbol) . Sing e1 -> Sing e2 -> SErrorMessage (e1 ':$$: e2)

    singletons-base Data.Singletons.Base.TypeError

    No documentation available.

  6. (:%<>:) :: forall (e1 :: ErrorMessage' Symbol) (e2 :: ErrorMessage' Symbol) . Sing e1 -> Sing e2 -> SErrorMessage (e1 ':<>: e2)

    singletons-base Data.Singletons.Base.TypeError

    No documentation available.

  7. (:<>:) :: ErrorMessage' s -> ErrorMessage' s -> ErrorMessage' s

    singletons-base Data.Singletons.Base.TypeError

    Put two pieces of error message next to each other.

  8. data (a6989586621680219211 :: ErrorMessage' s) :<>:@#@$$ (b :: TyFun ErrorMessage' s ErrorMessage' s)

    singletons-base Data.Singletons.Base.TypeError

    No documentation available.

  9. type family (a6989586621680219211 :: ErrorMessage' s) :<>:@#@$$$ (a6989586621680219212 :: ErrorMessage' s) :: ErrorMessage' s

    singletons-base Data.Singletons.Base.TypeError

    No documentation available.

  10. data (a6989586621679052212 :: a) :@#@$$ (b :: TyFun [a] [a])

    singletons-base Prelude.Singletons

    No documentation available.

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