Lebesgue's density theorem
= Lebesgue's density theorem
{c}
{wiki}
= Lebesgue density theorem
{c}
{synonym}
For every <Lebesgue measurable set> $A\subseteq\mathbb R^n$, its <measure density>[Lebesgue density] is $1$ at almost every point of $A$ and $0$ at almost every point of its complement.