Using Boolean (Logical) Operators
•OR Operator Use OR to group synonymous terms
• when at least one must be present.
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•AND Operator Use AND to connect terms when both
• or all must be present.
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•NOT Operator Use NOT to exclude records containing
• a specified term.
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These are the three main Boolean Operators.  Note that the description of the AND Operator matches what I was trying to accomplish with finding records on the fear of mathematics.  Let’s explore each separately