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Results tagged with measure-theory
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user 21586
Questions about abstract measure and Lebesgue integral theory. Also concerns such properties as measurability of maps and sets.
7
votes
2
answers
1k
views
Sections measure zero imply set is measure zero?
I have a subset $B\subset\mathbb{R}^n\times\mathbb{R}^m$ that I want to show has measure zero. I know that the sections $B^x = \{y : (x,y)\in B\}$ all have measure zero. I do not know if $B$ is measur …
- 16.2k
1
vote
3
answers
1k
views
What does it mean to say "almost always" ?
I have a set, $A$, of $m \times n$ matrices with certain properties and a subset $B$ of $A$. I would like to say that when randomly selecting such a matrix, I am "almost always" never in $B$. I can sh …
- 56.9k