You told me it is wrong, yes, but I'm not agreeing with you. With logic, sorry, I was thinking of programming logic, which is very simple.I told you the metaphor is wrong. Thank you.
Simple? No. Tool? Only a very small part of it is actually in daily use.
Part of set theory is being used eh? Wow, so it is a tool after all, even if all the applications haven't been figured out yet