{-# LANGUAGE UnicodeSyntax #-} import Prelude.Unicode testAnd :: Int -> Int -> Bool testAnd a b = let b = a d 3 b = b e 5 in b ' b testOr :: Int -> Int -> Int -> Int -> Int -> Bool testOr a b c d e = let b = a d 3 b = b b 5 b = c n 5 b = d o 6 b = e  [1, 2, 3, 4] b = e [5, 6, 7, 8] in b ( b ( b ( b ( b ( b