What is Boolean Search
What is Boolean Search?
Boolean searching is built on a method of symbolic logic developed by George Boole, a 19th century English mathematician. Boolean searches allow you to combine words and phrases using the words AND, OR, NOT (known as Boolean operators) to limit, broaden, or define your search. A good researcher should know how to do a Boolean Search.
AND: Using AND narrows a search by combining terms.
OR: Using OR broadens a search to include results that contain either of the words you're looking for.
NOT: Using NOT will narrow a search by exclusion. (Some search engines, like Google, recognize the minus (-) symbol, instead of the word NOT).
Quotations: Placing quotations around a specific phrase will help you narrow results in order to find information containing that exact wording.
OR logic
[pic]
college OR university
AND logic
[pic]
poverty AND crime
NOT logic
[pic]
cats NOT dogs
Boolean Searching on the Internet-
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