An example of a Lebesgue measurable set which is not a Borel set and why?
6675
Lebesgue measurable set that is not a Borel measurable set
93684
Show that $\mu (E \setminus A)>0$ if $A$ is a nonmeasurable subset of $X$ and $A \subseteq E$, $E$ is measurable.
134983
Borel sigma algebra not containing all subsets of $\mathbb{R}$?
86685
Example of a set $S$ that is countable, but the set of limit points is uncountable
157384
Points of continuity is a Borel set?
89749
Example of a not recursively enumerable set $A \subseteq \mathbb{N}$
98897
Proving that the set of $\nu$ measurable sets $M\subseteq P(X)$ is an algebra
98717
Are all measure zero sets measurable?
101028
Irrational numbers and Borel Sets
100919
Examples of non-measurable sets in $\mathbb{R}$
150961
An example for a homomorphism that is not an automorphism
51223
Example of decreasing sequence of sets with first set having infinite measure
69273
Is there a compact subset of the irrationals with positive Lebesgue measure?
87580
Canonical examples of inner product spaces that are not Hilbert spaces?
136795
A non-measurable set of given outer measure
53425
Prove that there exists a Borel measurable function $h: \mathbb R \to \mathbb R$ such that $g= h\circ f$.
109301
Lebesgue Integral of Non-Measurable Function