Symbol equivalent to NEQ, LSS, GTR, etc

In batch i always use == when using the if command. (for example: if "19"=="3" echo My computer doesnt know maths)

What about for all of the others (LSS, LEQ, NEQ, etc.)?Isn't there something like!=forNEQ`, or am I thinking Unix?

The reason I want to use symbols is because I thought someone had said for either text or numbers symbols were more efficent than using the text variants.

Either way, I'd still like to know. Thanks.