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That's a property of libraries as well, for instance avoiding the perturbation problem at compile time with with ekmett's AD library.

Many Haskell libraries are focused on allowing you to define entities that correspond to your desired semantics, while many libs in OO-languages are just about constructing the correct object-graph that happens to give you the result you want.



Could you please elaborate on this perturbation problem? It's the first time I hear that term.





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