Hello,

I would like to accepts intervals as answer (e.g. domain of a function) as in

x<1 and x>-10 and x!=9

x>10 or x<5

But everything I try doesn't work. I can get simple inequalities to check, but anytime I use "and" it renders as $forbiddenkeywordand$, and when I add "and" to the list of allowed words, it doesn't help.

Thanks!

-Patrick