[FOM] LaTeX code for "truth value of ..."

[Noah David Schweber]

The website Detexify (http://detexify.kirelabs.org/classify.html) suggests
\llbracket and \rrbracket, respectively.

On Thu, Dec 22, 2016 at 4:38 PM, Robert Lubarsky <
Lubarsky.Robert at comcast.net> wrote:

> In forcing and related areas, often the symbol which is like |[ - ]|
> (don’t know how else to type it) is used for the truth value, as in |[ phi
> ]| meaning the truth value of phi as a member of the Boolean value used in
> the forcing (or the truth value as a member of a Heyting algebra, for
> Heyting-valued models, and so on). What is the latex code for that symbol?
>
>
>
> Bob Lubarsky
>
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