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LiONiL: Library Instruction Online for Information Literacy

Module 3: Searching for Articles in Online Databases

Boolean operator: NOT

The search, television NOT advertising, tells the database search engine to find all article records that contain the word television except for the ones that also contain the word advertising.

Image demonstrating the boolean operator NOT

For a more detailed description of how Boolean operators function, please watch the You Tube video Boolean Operators created by emily@chemlib