Name: Anonymous 2008-08-28 20:02
I'm having problems with questions g) and k).
For g), apparantly the answer is i) but it seems to me they're all the same.If |b'| is a finite subset of an infinite set, then |b| must be an infinite set as N is infinite. Is there any difference between saying "b is infinite" and "|b| = infinity"?
For k), apparantly the answer is i) as well, but I still don't understand the notation. Could someone explain it through?.
Page in question: http://i38.tinypic.com/142ev41.jpg
For g), apparantly the answer is i) but it seems to me they're all the same.If |b'| is a finite subset of an infinite set, then |b| must be an infinite set as N is infinite. Is there any difference between saying "b is infinite" and "|b| = infinity"?
For k), apparantly the answer is i) as well, but I still don't understand the notation. Could someone explain it through?.
Page in question: http://i38.tinypic.com/142ev41.jpg