Re: tensor product twister



On 23.11.2006 14:59, magya_bloom@xxxxxxxxx wrote:

not sure what "inverse image of the natural ring homomorphism" means in
this context.

Sorry for being not very clear. I meant "preimage": If f: G -> H is a
map of sets, then the preimage of a subset H' of H is f^-1(H') = { g in
G | f(g) in H' }.
.