[texhax] the \let command

[Hartmut Henkel]

On Fri, 24 Nov 2006, R.Tange at soton.ac.uk wrote:

> I am using (probably one of the latest versions of) Latex.
>
> Why does
>
> \let\mycedilla\c
> \renewcommand{\c}{\ensuremath{\mathcal{c}}}
>
> work fine, but
>
> \let\tie\t
> \renewcommand{\t}{\ensuremath{\mathfrac{t}}}
>
> go wrong?

\mathfrac isn't a valid LaTeX core macro. You might need a macropackage
(which?) to activate it.

> After executing the above two lines \t and \tie mean the same thing.

no, \tie points to the _former_ \t definition, then \t is redefined.
They don't necessarily mean the same thing.

Regards, Hartmut