The more ideas and possible mixes and matches a law department manager has available to choose from, the more permutations there are. Obvious, yes, but what are the mathematics?

Mystery Math Whiz and Novelist Advance Permutation Problem A new proof from the Australian science fiction writer Greg Egan and a 2011 proof anonymously posted online are now being hailed as ...

Permutations and combinations are important concepts in mathematics and are frequently tested in exams like the Common Admission Test.

Combinatorial designs and finite group theory form a rich intersection of discrete mathematics and algebra, where structured arrangements of elements are studied alongside the algebraic properties ...

Daniel J. Velleman, Gregory S. Call, Permutations and Combination Locks, Mathematics Magazine, Vol. 68, No. 4 (Oct., 1995), pp. 243-253 ...