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If A= {a, b, c, d, e} and C= {c, d, e} then how are they equal
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If A= {a, b, c, d, e} and C= {c, d, e} then how are they equal

User Chris Montanaro
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{c, d, e} is common to both sets A and C.

{c, d, e} is called "the intersection of A and C."

Look up "intersection (set theory)" on the 'Net, for more info.
User Shashank V
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