[Haskell-cafe] Origins of '$'
dpiponi at gmail.com
Mon Dec 8 18:10:31 EST 2008
2008/12/8 Joachim Breitner <mail at joachim-breitner.de>:
> So A^(B+C) = A^B × A^C ?
That's part of the basis for Hinze's paper on memoization:
> It's always nice to see that I havn't learned the elementary power
> calculation rules for nothing :-)
More generally, all of Tarski's "high school algebra" axioms carry
over to types. You can see the axioms here:
http://math.bu.edu/people/kayeats/papers/saga_paper4.ps That proves
type theory is child's play :-)
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