This is why it’s important to understand and master these search operators. Why It’s Called Boolean. Boolean refers to George Boole, a 19th-century mathematician who invented Boolean logic.

Just when you thought you had Boolean logic in the bag, Excel 2013 introduced the new operator XOR, which means Exclusive OR. Think of it as a similar opposite of NOT: If one condition is true and ...

In comments, he directed users to the SEMrush “Google Search Operators Cheat Sheet,” which provides instructions on how to use Google the same way he did. Advertisement ...