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GATE199416
+3
votes
214
views
Every element $a$ of some ring $(R, +, o)$ satisfies the equation $a\;o\;a=a$. Decide whether or not the ring is commutative.
gate1994
settheory&algebra
ring
normal
asked
Oct 6, 2014
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Set Theory & Algebra
by
Kathleen
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(
59.9k
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