[off-topic] LaTex for [[ ... ]]

[D. Tweed]

On Fri, 1 Jun 2001, Fergus Henderson wrote:

> Sorry for the off-topic post, but I figured someone here would know...
> can anyone please tell me how to do the double-square-bracket symbols
> that are often used in denotational semantics in LaTex?  It's like
> "[[" but a single symbol without the space between the two brackets.
> (I checked the Latex companion, but it's not listed there AFAICT.)

It's either $[\![$ or $[\!\![$; likewise for close brackets. It's just
very crude as \! means `insert
standard-width negative math-space here'.

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