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Enumerative combinatorics, graph theory, order theory, posets, matroids, designs and other discrete structures. It also includes algebraic, analytic and probabilistic combinatorics.

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Number of elements of "$\mathrm{SL}_n(\mathbb{F}_p^\times)$" mod $p$

EDIT: There's an error in this approach, it doesn't work. Computing some examples seems to show the answer is pretty complicated... (All I have to add to what's been said is an ad-hoc argument for w …
Krishanu Sankar's user avatar