Let E be a measurable subset of R such that m(k)=0 for all compact subsets k of E. Then:

(B) For varepsilon0 there is an open set U in R such that Esubset U and m(U)<varepsilon

Q52Section II (Mathematics)52 of 190

Inner regularity forces measure zero, which gives outer-regular open covers of arbitrarily small measure

Let E be a measurable subset of $\mathbb{R}$ such that $m(k)=0$ for all compact subsets $k$ of E. Then:

Pick an option to check your answer.

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