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September 19th, 2007, 04:26 AM   #1
Joined: Sep 2007

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Idempotents in semisimple rings

Let R be a semisimple ring and e,f \in R idempotents.
Is it true that Re <= Rf implies eR <= fR?
Here Re, Rf, eR, fR denotes the left/right ideals generated by e/f.


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idempotents, rings, semisimple

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