While setting conditions for visibility, you can use comparison and arithmetic operators (pictured).
You can use the following symbols:
THE SYMBOL
MEANS
=
EQUAL TO
1!=;
NOT EQUAL TO
<
LESS THAN
<=
LESS THAN OR EQUAL TO
>
GREATER THAN
>=
GREATER THAN OR EQUAL TO
THE SYMBOL
MEANS
||; or
OR
&&; and
AND