Page boy (wedding attendant) Page boy (wedding attendant) A page boy is a young male attendant at a wedding or cotillion, a social dance. This type of wedding attendant is less common than it used to be, but is still a way of including young relatives or the children of relatives and friends in a wedding. A page is often seen at British royal weddings. There may be many pages for effect at cotillions. Traditionally, page boys carry the bride's train, especially if the bride is wearing a dress with a long train. Because of the difficulty of managing the train, page boys are
Rank of an abelian group theory of abelian groups of higher rank is more involved. The term rank has a different meaning in the context of elementary abelian groups. A subset {"a"} of an abelian group is linearly independent (over Z) if the only linear combination of these elements that is equal to zero is trivial: if where all but finitely many coefficients "n" are zero (so that the sum is, in effect, finite), then all summands are 0. Any two maximal linearly independent sets in "A" have the same cardinality, which is called the rank of "A". Rank of an abelian group is analogous