| Choose
Boolean operators |
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| • | Boolean
searching is named for |
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| George
Boole, a 19th Century |
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| mathematician.
He defined |
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| logical
relationships among |
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| words. |
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| • | The
four main Boolean operators |
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| are
AND, OR, NOT, and NEAR. |
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| • | Boolean
operators are an |
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| excellent
means to prevent |
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| unwanted
search results. |
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