Talk:Rank of an abelian group

Untitled
When the article says:
 * A^n is isomorphic to B^n

should this be
 * $$A^n$$ is isomorphic to $$B^n$$,

or is this a special notation I don't know about?


 * Missed this, sorry... fixed. Dysprosia 09:02, 9 Aug 2003 (UTC)

something about p-ranks? (rank $$r(A)$$ of an abelian group $$A$$ is the non-torsion rank $$r_0(A)$$ plus sum of p-ranks $$r_p(A)$$ for every prime p).

More Examples
How about explicit examples of abelian groups of rank greater than 1? Kerry (talk) 22:54, 22 September 2013 (UTC)