Hello folks - We noticed something weird today, and was hopeing that someone here might be able to explain it for us a bit.. Here's the rule we had: eval( -1< 0 or 8> 1 or 182< 0 or 0 == 0); This was failing, but doesn't it seem like it should work? To get it to work, we tried this: eval( (-1< 0) or (8> 1) or (182< 0) or (0 == 0)); ... but that didn't compile. We then tried this (and it worked!): eval( (-1< 0) || (8> 1) || (182< 0) || (0 == 0)); So, my question is simply - why? What's the difference between "or" and || - and when should we use them? Thanks for your time! Matthew Runo Software Engineer, Zappos.com mruno(a)zappos.com - 702-943-7833 _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users