The Boolean operator "NOT"

The operator discards the documents what contain the terms that follow it. Used without parentheses, this operator takes action on the whole rest of the line. Text’O’Mat leaves out the documents that contain the term(s) after the NOT operator. Example 1 : if you type the query: 'NOT estimate' Text’O’Mat only retrieves the greysed documents that do not contain the word ‘estimate’.
Documents | Words contained in the document
Document 1 | Estimate
Document 2 | Invoice Estimate
Document 3 | Invoice
Document 4 | Contract Estimate
Document 5 | Estimate Invoice
Document 6 | Contract
Example 2 : if you enter the following query: ‘invoice AND NOT estimate’ Text’O’Mat finds the greysed documents that contain the term ‘invoice’ without the term ‘estimate’.
Documents | Words contained in the document
Document 1 | Estimate
Document 2 | Invoice Estimate
Document 3 | Invoice
Document 4 | Contract Estimate
Document 5 | Estimate Invoice
Document 6 | Contract
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