[Haskell-cafe] Origins of '$'

[George Pollard]

Hello Haskell-Café:

This is a little bit random, but I was just wondering if anyone knew
where the $ low-precedence parenthesis-eliminating application operator
originated. The Haskell Report doesn't mention anything, and I can't
search for "$" on Google. So... who thought it up? Does it originate in
an earlier language, or is it uniquely Haskellish? :)

- George
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