In mathematical descriptions of the Boolean Algebra you find mainly the representation with three operations...
When the design of logical circuits is discussed, you often find the representation with only one operation...
When developing integrated logic circuits you often resort to the NOR operation, because they are particularly simple to implement in integrated circuits...
An additional representation is seen frequently in the literature on digital electronics...
Here two new operations are introduced, the eXclusive OR (XOR) and XNOR operation. You find a description of the operations in the experiments 32 and 33...
But enough about the individual operations and laws. Now you continue with logical problems that can be simplified by using the Boolean algebra...