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October 13th, 2013, 01:09 PM  #1 
Newbie Joined: Oct 2013 Posts: 25 Thanks: 0  measure of unbounded set
Suppose A is not a bounded set and m(A?B)?(3/4)m(B) for every B. what is m(A)?? here, m is Lebesgue Outer Measure My attemption is : Let An=A?[n,n], then m(A)=lim m(An)= lim m(An?[n,n]) ? lim (3/4)m([n,n]) = infinite. is my solution right? I am confusing m(A) < infinite , it doest make sence for me. Could someone help me??? 
October 14th, 2013, 02:30 AM  #2  
Senior Member Joined: Feb 2013 Posts: 281 Thanks: 0  Re: measure of unbounded set Quote:
Quote:
 
October 14th, 2013, 02:34 AM  #3  
Newbie Joined: Oct 2013 Posts: 25 Thanks: 0  Re: measure of unbounded set Quote:
Thanks , i get the point. !!  

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