[OS X TeX] Tags, BibTeX, and font question for TeXShop

[Franck Pastor]

Le 01-juil.-08 à 14:49, R Martinez a écrit :
>
>
> 3. I tried to use the mathbb font shown in TeXShop's LaTeX panel,  
> but I get an error when I try to typeset. Here's an example:
>
> $\mathbb{a}$
>
> The console reads:
>
> !Undefined control sequence
> <recently read> \mathbb
>
> I.440 $\mathbb
> 		{a}$
> ?
>
> Incidentally, I tried to select and copy the console's error  
> message shown above, but the console does not let me select the  
> text. Why is that?
>
> Here's the preamble for my document.
>
> \documentclass[12pt]{article}
>
> \usepackage{lmodern}    \usepackage[T1]{fontenc}
> \usepackage{amsmath,epsfig,latexsym,bm}
> \usepackage{exscale,relsize}
> \usepackage{tocbibind}
>
>
>
> Can anyone help?

Hello,

You should also load the "amssymb" package if you want to use \mathbb.

Hope that helps,


Franck Pastor
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