In a language like IC, all expressions are simplified down to either true or false. A false expression is one that equals 0. A true expression is one that equals any non-zero number.

Expression Conditionals

The following items can be used to form conditional expressions.

Syntax	Description	True Example	False Example
==	Equal To	3==3	3==2
!=	Not Equal To	3!=2	3!=3
>	Greater Than	3>2	3>3
<	Less Than	2<3	3<2
>=	Greater Than Or Equal To	3>=3	2>=3
<=	Less Than Or Equal To	2<=3	3<=2
Not	Inverts The Expression	!0	!1
&&	True If Both Expressions Are True	(3 > 2) && (!0)	(3 == 3) && (4 <= 2)
||	True If Either Expression is True	(3 == 3) || (4 <= 2)	(!1) || (2 > 3)

Note, expressions are not limited to just numbers. They can contain variables or functions (ex. sonar() ).