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A counterpart to `diff` #400

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dbeacham opened this issue Sep 23, 2020 · 0 comments

dbeacham commented Sep 23, 2020

I have a few properties that I want to check that are best expressed as negations, so rather than

diff x op y

I end up with

diff x ((not .) . op) y

I can obviously define a helper for my use case

undiff x op y = diff x ((not .) . op) y

but might be useful to have such a function in the library? Although I haven't thought of a good name for it.

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