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Questions that are about research in mathematics, or about the job of a research mathematician, without being mathematical problems or statements in the strictest sense. Do not use this tag for easy or supposedly easy mathematical questions.
21
votes
Why are the sporadic simple groups HUGE?
Indeed the question is too vague for a precise answer, but nevertheless somehat natural ;-)
I want to give some more details and clearifications to the "hierarchy", that has been broached by Carnahan …