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by adrusi 5325 days ago
also in Data.List (which is a fairly common import) there are a few, like (\\) which is list difference ([1, 2, 3, 4, 5, 6] \\ [1, 3, 6] == [2, 4, 5]), and I can't really think of any others.

There aren't really that many, though some modules will abuse them. The standard ones make sense.