# What does $\stackrel{\mathcal L}{=}$ mean?

I guess

$A \stackrel{\mathcal L}{=} B$

means $A$ and $B$ hand side has the same probability distribution. Is that right?

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The next time you ask about notation, please don't forget to mention the book/paper/whatever you were reading when you saw this. –  Ｊ. Ｍ. Sep 15 '11 at 1:03
It's an unpublished book. But I will remember your suggestion. –  ablmf Sep 15 '11 at 1:51
Correct. $A$ and $B$ are "equal in law" (thus the letter L), that is $A$ and $B$ have the same distribution.