Proof:
.
is not closed.
. This is impossible. We get a contradiction.
is not closed.
Please can you explain me with more detail about Lebesgue measure of Q.
Why m(Q)=0 and m(In)=2/n?
(See attached file for full problem description)
Lebesgue measures are investigated. The solution is detailed and well presented. The response received a rating of "5/5" from the student who originally posted the question.