This is probably the most simple question asked in this forum, and I feel silly for even asking, but is there and OR operator that I can use in a macro?

For example, I have a web part on my master page and I want it to display on every page except for a few. My macro of

{%if (cmscontext.currentpageinfo.documentname == "Page Name One") { "false" } else { "true" }%}

for multiple pages, but it doesn't work. Do I need to use nested macros or is there some really simple instruction that I just can't find in the documentation or on Google?

Thanks