Formula documentation is a bit spare.
There’s no explicit list of comparison operators (>, >=, ! , whatever they happen to be – don’t know yet because I can’t find them anywhere!).
If they exist, it’s hard to find definitions for various constants, e.g. the “blank” status has the value of “EMPTY” – I had to write a formula to find that out!
Etc. Maybe just borrow from the documentation for whatever syntax you’re borrowing in the first place, e.g. Excel, and go from there? Or even say, “our formula syntax is based on Excel [version], and most of the syntax is the same!” You could even provide a link.