Curly braces can be used via `\\(A = \\{x,y,z\\}\\)`: \\(A = \\{ x,y,z \\}\\)

It's annoying, but you need two backslashes before the braces.

`\\(\begin{cases}
1 \\\\
4 \end{cases}\\)`

\\(\begin{cases}
1 \\\\
4 \end{cases}\\)

There's a similar issue when you want a newline embedded in the text, like trying to use `cases` above.