Hi, I would try this:
If where
then there exists open set such that :
1.
2. .
Since every open set in is Lebesgue measurable, there holds
.
Rewriting this for and using properties 1,2 of set seems to be a good way to solve your problem.
Hi, I would try this:
If where
then there exists open set such that :
1.
2. .
Since every open set in is Lebesgue measurable, there holds
.
Rewriting this for and using properties 1,2 of set seems to be a good way to solve your problem.