Posted by Lindsay on Thursday, January 15, 2009 at 11:50am.
Can someone explain to me why the intersection of two infinite sets is not always an infinite set, but the union of two infinite sets is?

Algebra  bobpursley, Thursday, January 15, 2009 at 11:52am
Take the infinite set (0, odd numbers). Then consider the infinite set (0. even numbers).
The intersection is not infinite, it contains just 0
But the union is infinite, as it contains 0, all odd, and all even

Algebra  Lindsay, Thursday, January 15, 2009 at 12:01pm
That makes sense. Thank you!
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