bug#57626: 13.1.4; cases* environment doesn't let me use $

[Ikumi Keita]

>>>>> Arash Esbati <arash@gnu.org> writes:
>> Then, how about adding supplementary instruction to the message which
>> `TeX-insert-dollar' shows? For example,
>> Math mode started with `...' cannot be closed with dollar.  You can
>> insert it anyway by C-q $.

> I'd suggest to say "You can insert it anyway by C-u $" which is more in
> line with the docstring of `TeX-insert-dollar'.  Does it make sense?

Yes, of course.

Bye,
Ikumi Keita
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