[Haskell-beginners] Who discovered the fold operation?

[Tony Morris]

On 07/09/12 18:58, Costello, Roger L. wrote:
> Hi Folks,
>
> Scientists look for recurring patterns in nature. Once a pattern is discovered, its essential ingredients are identified and formalized into a law or mathematical equation. Discovery of a pattern is important and those individuals who make such discoveries are rightfully acknowledged in our annals of science.
>
> Scientists are not the only ones that look for recurring patterns, so do functional programmers. Once a pattern is discovered, its essential ingredients are identified and formalized into a function. 
>
> Long ago someone in the functional programming community discovered a pattern that has become known as the fold operation. It was an important discovery, on-par with some scientific discoveries. 
>
> Who discovered the fold operation? When?
>
> /Roger
>
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See Church-Turing Thesis.

-- 
Tony Morris
http://tmorris.net/