Notices where this attachment appears
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It just occurred to me that...
If you are preparing a cucumber for a greek salad, that it DOES NOT MATTER if you cut the cumber radially ( into circles) and then cut those into quarters.
OR
If you cut the cucumber along it's long axis into quarters, and then chop those into smaller pieces.
And this is a real world application of Theorems for Free, Wadler 1989
https://people.mpi-sws.org/~dreyer/tor/papers/wadler.pdf
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@make No! lifes too short! Also the reason it didn't get drunk immediately was we got distracted reading Wadlers paper on "Free Theorems" https://people.mpi-sws.org/~dreyer/tor/papers/wadler.pdf