Boolean logic

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Noun1.Boolean logic - a system of symbolic logic devised by George Boole; used in computers
formal logic, mathematical logic, symbolic logic - any logical system that abstracts the form of statements away from their content in order to establish abstract criteria of consistency and validity
Translations
Booleova logikabooleovská logika
Booleova logika
References in periodicals archive ?
Recent experimentation has shown that system performance is improved by replacing the inference network Boolean operator calculation used in the INQUERY retrieval system [Callan et al.
Or had you forgotten that in an online world, OR is a Boolean operator and always means more?
Examples include a cartoon created to re-emphasize the ANDNOT Boolean Operator used in the United States Patent and Trademark Office (USPTO) database.
I found that "and" does not work as a Boolean operator (no results are returned), but does when used as part of a title (such as Dido and Aeneas).
These enhancements most notably include cross-database searching, truncation (long overdue), and unlimited use of the OR Boolean operator. Quotation marks for phrase searching will also be enabled, as will context-sensitive help, relevance ranking, and an increased number of database thesauri.
From this point, researchers can build a search by selecting one or more terms from the index and choosing the desired Boolean operator for multiple terms.
The default Boolean operator for the simple search mode is AND.
A Boolean operator menu determines how search terms are connected.
There is nothing to reveal that the implicit Boolean operator working in this search is "OR." Hence a user putting in the last anti first names of a composer-an obvious search for many library users-will produce a much larger search result than might be expected.
Caution for experienced searchers is required when encountering BUBL keyword searching, for unlike many CD-ROMs which have the AND operator as the default operator, the Boolean operator OR is the default search operator on BUBL.
When more than one search term from a browse index is selected, IIMP automatically combines them, using the Boolean operator "or." Between search boxes, all terms are treated by default as if they were combined using the Boolean operator "and."
Sharan, "A comparison of two methods for soft boolean operator interpretation in information retrieval".