Let $\mathcal{B}$ denote the Borel sigma algebra. Is it true that
$\mathcal{B}([0,1]) = \{A \cap [0,1] \ | \ A \in \mathcal{B}(\mathbb{R})$} ?
2026-03-29 06:08:05.1774764485
Borel sigma algebra of the Interval given by the restriction?
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