[EXT] Re: With beamer, "Missing { inserted." (regression)

[Herbert Voss]

Am 18.02.22 um 10:43 schrieb Vincent Lefevre:
> On 2022-02-18 09:12:01 +0000, Philip Taylor (Royal Holloway) wrote:
>> Lamport's book is entirely clear on the supported syntax for sub-
>> and superscripts.
> Actually it is not clear at all. From the table of contents, I can see
> that this is Section 3.3.1 page 40, and there, braces are always used,
> but Lamport does not say that they are mandatory. This is not clear
> because when one tries $x_1$, this works as wanted.

sure. It is the same as \textbf1

Herbert


>
> One-digit subscripts and superscripts occur very often, and I'm
> wondering how many users put braces, e.g. $x_{1}$, in these cases.
>