Infinite union & infinite intersection

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Infinite union & infinite intersection

by amit28it » Tue Nov 15, 2011 5:25 am
I don't quite understand the meaning of "infinite union" and "infinite intersection".

Is an infinite union
∞
U Ak
k=1

being defined as a limit

lim (A1 U A2 U ... U An) ???
n->∞

How about an infinite intersection?

Thanks!
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