There's got to be a way to include more than one condition withing a single set of parentheses.. for instance

If (n==0) ...

I tried a few different distinguishers like commas, semicolon, even the & sign, and none work.

If (n==0, z==1, p==2) ...

What is it exactly that I must type? If there is no way, I'm a bit dissapointed because I like very much the ability to group conditions and have one else which is executed if any of the conditions are false.