'''Abstract nonsense''' is a humorous term applied by mathematicians to criticize what they consider to be unnecessary abstractions used by [[category theory]], particularly when used to solve a problem that could be solved more directly.
'''Abstract nonsense''' is a humorous term applied by mathematicians to criticize what they consider to be unnecessary abstractions used by [[category theory]], particularly when used to solve a problem that could be solved more directly.
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Academic mathematicians, however, almost never criticize each other publicly, even when criticism is warranted, and [[liberal denial]] requires them to deny that this is pejorative term.
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Academic mathematicians, however, almost never criticize each other publicly, even when criticism is warranted. [[Liberal denial]] requires them to deny that this is pejorative term.