Introduction to Boolean Logic (continued)
- Retrieves a set from which citations to articles containing specified search terms following the NOT operator are eliminated.
Example: arthritis NOT letter
Note in the diagram to the right and in the sample search results below that the retrieval is a portion of the total retrieval for arthritis – that portion not including the term letter.
|arthritis NOT letter||159,681|
- Use the NOT operator with caution; you might eliminate relevant articles.