Boolean logic defines logical relationships between terms in a search. The Boolean search operators are AND, OR and NOT. You can use these operators to create a very broad or very narrow search.

The English mathematician George Boole (1815-1864) invented mathematical, or symbolic, logic and uncovered the algebraic structure of deductive logic, thereby reducing it to a branch of mathematics.

"Boole, George (1815-1864)." *Encyclopedia of World Biography*. Detroit: Gale, 1998. *Gale Biography In Context*. Web. 25 Mar. 2011.

* **Academic Search Premier (EBSCOhost).*

Diane Baker

William Hessel Library

Lake Michigan College

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Benton Harbor, MI 49022

Lake Michigan College

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Benton Harbor, MI 49022

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