Originally Posted by Radio
I studied Boolean
OK, let's give a little quiz. You know about 1 and 0. In switching algebra, those are the only two values. They are the "identities":
1 "or" anything = 1
0 "and" anything = 0
Every Boolean algebra has two identities (one for each of the two binary functions, in this case "and" and "or"). In switching algebra, those are the only
two values, 0 and 1. In some Boolean algebras the two identities are different from these, and some Boolean algebras don't even have 0 or 1 as possible values.
Quiz: What is the restriction on how many values a variable in a Boolean algebra can have?