ELECTIONS
, or Choice, signify the several different ways of taking any number of things proposed, either separately, or as combined in pairs, in threes, in fours, &c; not as to the order, but only as to the number and variety of them. Thus, of the things a, b, c, d, e, &c, the elections of &c; and of any number, n, all the elections are 2n-1; that is, one less than the power of 2 whose exponent is n, the number of single things to be chosen, either separately or in combination.
