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Like most good ideas, it came from Haskell :)

The part that bothers me about the list comprehension section is that conflating list comprehension and lambda. Is it telling me that list comprehension is better than map/filter or better than lambda? I don't know. Quiet honestly, in many situations I find:

halves_evens = lambda nums : [i/2 for i in nums if nums % 2 == 0]

to be the cleanest.



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