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Within LTS Haskell 24.51 (ghc-9.10.3)

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  1. 𝜀 :: [a]

    base-unicode-symbols Data.List.Unicode

    Epsilon, the empty word (or list) (ε) = [] (U+3B5, GREEK SMALL LETTER EPSILON)

  2. 𝜀 :: [a]

    base-unicode-symbols Data.String.Unicode

    Epsilon, the empty word (or list) (ε) = [] (U+3B5, GREEK SMALL LETTER EPSILON)

  3. 𝜀 :: [a]

    base-unicode-symbols Prelude.Unicode

    Epsilon, the empty word (or list) (ε) = [] (U+3B5, GREEK SMALL LETTER EPSILON)

  4. look :: forall w (sig :: (Type -> Type) -> Type -> Type) m . Has (Accum w) sig m => m w

    fused-effects Control.Effect.Accum

    Look up the previous accumulation

    runAccum w look = return (w, w)
    runAccum w (look >>= continuation) = runAccum w (continuation w)
    

  5. cutfail :: forall (sig :: (Type -> Type) -> Type -> Type) m a . Has Cut sig m => m a

    fused-effects Control.Effect.Cut

    Fail the current branch, and prevent backtracking within the nearest enclosing call (if any). Contrast with empty, which fails the current branch but allows backtracking.

    cutfail >>= k = cutfail
    
    cutfail <|> m = cutfail
    

  6. empty :: forall (sig :: (Type -> Type) -> Type -> Type) m a . Has Empty sig m => m a

    fused-effects Control.Effect.Empty

    Abort the computation. empty annihilates >>=:

    empty >>= k = empty
    

  7. ask :: forall r (sig :: (Type -> Type) -> Type -> Type) m . Has (Reader r) sig m => m r

    fused-effects Control.Effect.Reader

    Retrieve the environment value.

    runReader a (ask >>= k) = runReader a (k a)
    

  8. get :: forall s (sig :: (Type -> Type) -> Type -> Type) m . Has (State s) sig m => m s

    fused-effects Control.Effect.State

    Get the current state value.

    runState a (get >>= k) = runState a (k a)
    

  9. exitFailure :: MonadIO m => m a

    rio RIO

    Lifted version of "System.Exit.exitFailure". @since 0.1.9.0.

  10. exitSuccess :: MonadIO m => m a

    rio RIO

    Lifted version of "System.Exit.exitSuccess". @since 0.1.9.0.

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