Chemeketa Community College
Previous page
Operations within parentheses are performed first. In the expression, "(injuries OR accidents) AND sports," "(injuries or accidents)" is combined to create a list of documents with either word. Then that list is combined with "sports" to yield documents which must also contain the word, "sports." The expression, "sports AND (injuries OR accidents)" is equivalent, and would find the same number of documents as the first.
Diagram showing the circle Sports joined with two separate circles marked Injuries and Accidents
Next page