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Searching Tips - BOOLEAN OPERATORS Boolean operators are used to narrow or broaden a search. You can use them to help your search in Catalog, Galileo and Internet. The following diagrams show how the Boolean operators affect a search. The shaded area represents the searching results. "AND" narrows a search.
"OR" Broadens a search.
Either or both terms appear in a record.
"NOT" eliminates terms from a search.
Example: Computer not Education First term appears, but the second term does not.
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Example: Computer and Education 
Example: Computer or Education
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