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History and philosophy of mathematics, biographies of mathematicians, mathematics education, recreational mathematics, communication of mathematics.

6 votes

What is the history of the Y-combinator?

Turing's 1937 paper (of just one page!) which defines $\Theta$, his own fixed point combinator, refers to a 1936 paper by Kleene in which a "function L with a property similar to the essential propert …
Chris Stephenson's user avatar