[Haskell-cafe] Removing alternate items from a list

R J rj248842 at hotmail.com
Sun Jun 6 10:46:35 EDT 2010

What's the cleanest definition for a function f :: [a] -> [a] that takes a list and returns the same list, with alternate items removed?  e.g., f [0, 1, 2, 3, 4, 5] = [1,3,5]?
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