Boolean algebra is fundamental to modern computing, and all major programming languages include it.

It also figures heavily in statistical methods and set theory.

A Boolean search is particularly helpful after running an initial search.

Google search engine page with search results displayed on a computer monitor

Oleksiy Maksymenko/Getty Images

To return to the dog example, consider a situation where you’ve searched fordogs in park.

To cut down those millions of results, you could include-water.

Immediately, this oneweb search trickhas let you cut down countless results that you’re not interested in seeing.

More Boolean Search Examples

Below are some more examples of Boolean operators.

Remember that you might combine them and utilize otheradvanced search optionssuch asquotes to define phrases.