----- Original Message -----

From: SCOTT J.

To: haskell-cafe@haskell.org

Sent: Thursday, April 21, 2005 5:16 PM

Subject: [Haskell-cafe] a newbie's question

Hi, I'm trying to investigate the list monad. I program

 

instance Monad [] where

xs >= f  =  concat ( map f xs )

return x = [x]

a = [1,2,3]

b = "there"

do { x  <-  a

         y  <-  b

         return (x , y) } 

And I get the error

Syntax error in input (unexpected backslash (lambda))

 

Jan

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