Truth tables - I have to admit that I had completely forgotten about them. I can’t even remember how many years it’s been since I looked at them.
Suspiciously similar to Boolean algebra, maybe?
Looks like it, just the opposite here, I completely forgotten about boolean algebra;
https://www.baeldung.com/cs/boolean-algebra-basic-laws
#772 oh yeah. 1983-85 and,or.....
#772 I lied. Actually used them just a few years ago in programming code for crestron dmps boxes