On Mar 8, 2010, at 8:43 PM, Rob Beezer wrote:

Hi Mike,

First, thanks for your work on this.

An implementation of finite abelian groups would be at the top of my
list.  Folklore has it many have tried - not sure just where it gets
hard.

Implementing it isn't that hard (I think)--we already have a good implementation of free modules over Z (with quotients, homomorphisms, etc.) The "hard" part is swapping out the clean(er) implementation for what's there now. The abelian groups stuff was written ages ago, before there were any standards for anything, and lots of stuff uses it in odd ways and depends on its quarks, internal representations, etc.

- Robert


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