What is "alternating group"

n. (context group theory English) a (l en group) of (l en even permutation even permutations) of a (l en finite) (l en set)

In mathematics, an alternating group is the group of even permutations of a finite set. The alternating group on a set of n elements is called the alternating group of degree n, or the alternating group on n letters and denoted by A or Alt(n).