My Math Forum Localized Modules isomorphism

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 October 27th, 2011, 12:29 PM #1 Newbie   Joined: Oct 2011 Posts: 29 Thanks: 0 Localized Modules isomorphism Hello I have a problem to do, that I think is incorrect, but I don't know if my counterexample is correct. Show that $W^{-1}M_1 \oplus W^{-1}M_2 \simeq W^{-1}(M_1 \oplus M_2)$ My counter example is the obvious one $Q \oplus _Z Q$. Thanks in advance.
 October 28th, 2011, 08:27 AM #2 Newbie   Joined: Oct 2011 Posts: 29 Thanks: 0 Re: Localized Modules isomorphism It's alright, I already know the solution.

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