Definitions for

**"Boolean"****Related Terms:**Boolean logic, And, Boolean operator, Logical operator, Boolean expression, Not, Boolean operators, Boolean searching, Boolean operation, Boolean algebra, Nesting, Boolean operations, Boolean search, Logical expression, Xor, Operators, Search statement, Exclusive or, Logical operators, Fuzzy logic, Predicate, Fuzzy search, False, Search string, Proximity search, Keyword searching, Keyword search, Proximity searching, Phrase searching, Advanced search, Query, Proximity operators, Binary search, Boolean variable, Searching, Operand, Find, Search, Stopwords, Search, Phrase search, Stopword, Truncation, Keyword, Condition, Expression, Relevance ranking, Boolean function, Field searching

A boolean operator will determine a query by joining simple terms with AND, OR and NOT for the purpose of limiting or qualifying the search. Example in Google type in 'Search Term1' AND 'Search Term2' and the search engine will find pages that provide both terms in the web page. Other operators you can use is OR. Ensure that AND, OR, NOT are in capital letters.

A true or false value. Named for the branch of logic invented by George Boole that deals with statements using true, false, and, or, not, etc.

a logical system or algebra using set theory and operators such as "and", "or" and "not", the basis of binary computers and some solid modeling operations, described by and named after the mathematician George Boole

Having to do with logical (true, false) values. Many languages directly support a Boolean data type, with predefined values for true and false; others use integer data types to implement Boolean values, usually (although not always) with 0 equaling false and â€œnot 0â€ equaling true.

A system of logic. It is used on the Internet in searching for resources. In its simplest form for example, entering "Web AND Page" as search criteria would tell the search tool to find resources that contain both the words both "Web" and "Page." Entering "Web OR Page" as search criteria would tell the search tool to find resources that contain both the words "Web" and "Page" or either word.

A variable that has a value of either 1 ("true or "yes") or 0 ("false" or "no").

A system of logic developed by George Boole (1815-1864), an English mathematician and computer pioneer. In Boolean searches, an "and" operator between two values (for example, "pear AND apple") will turn up only documents that contain both terms. An "or" operator between two values (for example, "pear OR apple") will turn up documents with either of the terms. In computer operation with binary values, Boolean logic can be used to describe electromagnetically charged memory locations or circuit states that are either charged (1 or true) or not charged (0 or false).

(adj.) Characteristic of an expression or variable that can have only a true or false value. The JavaTM programming language provides the Boolean type and the literal values true and false.

A Visual Basic type which is either TRUE or FALSE.

A common system of logic that uses operators such as AND, OR, and NOT. For example, a search for "cat and dog" would find files which included both terms. A search for "cat or dog" would find files which included either or both terms. Searching for "cat not dog" would exclude those files which had the term "dog". Boolean logic is worth understanding because most searchable databases (including Internet Search Engines) will use a version of it. Using Boolean logic can help you create very precise search strategies and maximise the efficiency of your search time.

Named after the nineteenth-century mathematician George Boole, Boolean logic is a form of algebra in which all values are reduced to either TRUE or FALSE. Boolean logic is especially important for computer science because it fits nicely with the binary numbering system, in which each bit has a value of either 1 or 0. Another way of looking at it is that each bit has a value of either TRUE or FALSE.

Primitive data type indicating either true or false.

1. n. Pertaining to the processes used in the algebra formulated by George Boole. 2. n. A value of 0 or 1 represented internally in binary notation.

This is the logic that computers use to determine if a statement is true or ...

A term that originated in the in the realm of mathematics, and that is now commonly known for its application to search engine logic. A Boolean search allows for the inclusion or exclusion of documents containing certain keywords, using Boolean operators such as "and," "not" and "or." For example: A search structured "Bush and China" would return all documents that refer to both "Bush" and "China," but not those that contain only one term or the other."Bush not China" would return all documents referring to "Bush," except for those that also contain references to "China.""Bush or China" would return all documents that reference either "Bush" or "China," as well as those that reference both. Some Boolean search engines allow keywords and operators to be nested using parentheses. For example, a search structured as "Bush and (Japan or China)" would return all documents that reference both Bush and Japan, as well as those that reference both Bush and China.

A system used frequently in search engines and directories for searching and retrieving information using and combining terms such as AND, OR, and NOT to sort data.

Boolean algebra is the mathematics of base two numbers. Since base two numbers have only two values, zero and one, there is a good analogy between base two numbers and the logical values "true" & "false". In common usage, booleans are therefore considered to be simple logical values like true & false and the operations that relate them, most typically "and", "or" and "not". Since everyone has a basic understanding of the concepts of true & false and basic conjunctions, everyone also has a basic understanding of boolean concepts -- they just may not realize it.

A value that is either TRUE or FALSE

Used with search engines to better define your search. Related sections: Search Engines

A Boolean or logical data type can have only one of two values: true or false (or Yes/No or 1/0). Parker, 1994 ERIN

Taking only 0/1, true/false, yes/no values.

A system for searching and retrieving information from computers by using and combining terms such as AND, OR, and NOT to select data.

A binary value, yes or no, true or false.

The use of the operators AND, OR, and NOT while using a search engine on the web. This advanced searching feature is not available in WebCT.

The term 'Boolean' often encountered when doing searches on the web, refers to a system of logical thought developed by the English mathematician and computer pioneer, George Boole (1815-64). In boolean searching, an 'and' operator between two words or other values (for example, 'pear AND apple') means one is searching for documents containing both of the words or values, not just one of them. An 'or' operator between two words or other values (for example, 'pear OR apple') means one is searching for documents containing either of the words.

based on the algebra developed by George Boole, which involves two values, often 0 vs. 1, or T vs. F, and has primary operations AND, OR, and NOT as well as less used operations such as XOR Some IR systems accept Boolean queries, wherein words, phrases, or descriptors are required to occur in retrieved documents in a way that satisfies (makes true) the Boolean expression supplied.

Boolean Algebra is a branch of mathematics developed by George Boole in the mid 19th Century where the only values are yes and no (true and false). Boolean values are integral to computer science.

Of or relating to a logical combinatorial system treating variables, such as propositions and computer logic elements, through the operators AND, OR, NOT, and XOR.

A binary literal value which can be either true or false.

In computer science, boolean refers to something that may either be true or false. For example, you've got your boolean expressions (like: Is equal to 3?), boolean variables, boolean operations (like the and operation in: If equals 3 and equals "Yo' momma," then commit hara kiri), etc.

A variable which can contain a value of true or false.

of or relating to a combinatorial system devised by George Boole that combines propositions with the logical operators AND and OR and IF THEN and EXCEPT and NOT

a bit variable that is either on or off, or true or false

a logical entity that consists of either a true or a false value

a logical indicator, it is NOT a two value enumeration

a simple TRUE or FALSE evaluation

a simple variable type that has one of two possible values, true or false

a way to compare different values in a true/false condition, giving different results depending on the comparison result

a method of combining concepts to gain the result you want using the following "connectors": AND, OR, NOT. When looking at the functionality of the search engine I have considered "simple" Boolean (e.g. wineries AND Margaret River) and "complex" Boolean (e.g. [("mulled wine" NEAR brandy) AND recipe])

A technique of constructing searches by using the operators 'AND', 'OR' and 'NOT' to combine two or more search terms in order to expand or limit an on-line database search.

Referring to the operations of union, intersection, and complementation, their relationships and representations.

A query strategy for searching databases. Boolean searches use connectors such as "and" or "or" to expand or narrow a search. For example, to retrieve information about cats and dogs, searchers type in the word "and" to insure they receive information about both groups.

A common system of logic that operators such as AND, OR, NOR, and NOT. Commonly used by search engines

Data type. Boolean values can be either (true) or (false).

a type of formula used in computer searching often using the operations AND, BUT, OR.

This is a type of search based on mathematical logic which uses the commands AND, OR, NOT to determine what items will be included in a result list. Two words linked by AND will display only results that include both words. Two words linked by OR will include records that contain either one word or the other. Two word linked by NOT will include records that contain the first word on if it does not also contain the second word.

a variable or expression whose value is either true or false

An algebra that permits operations on sets of elements. Principal Boolean operators are AND (intersection), OR (union) and NOT (difference).

a way of searching that uses 'and,' 'or' and 'not.'

Describes a variable that may have one of only two possible values: true or false. After George Boole, English logician, credited with the invention of "Boolean logic."

A Boolean search is a search that allows logical relations between parts. This means that you power your request with the ability to find all relevant documents that fulfill one condition AND (OR) another one. Other common operators include NOT and NEAR. The search algorithm is built on the algebraic theories of the English mathematician George Booles.

Boolean operator or Boolean term. Words like "and," "or," "not," etc. that are used to create Boolean queries. Often used by search engines.

logical system of operators (AND, OR, NOT) that allow true or false operations to be performed on search queries; usually an advance search feature (389)

A system devised by George Boole for applying mathematics-like procedures to logic. It uses expressions, (an expression is a mathematical statement, such as 1+1=2) built up from propositions, and the logical operations "and", "or", "not". Each expression can be "evaluated" as "True" or "False" (and nothing in between!).

an object of type boolean; that is, one of the following objects: the symbol (representing true), or the symbol nil (representing false). See generalized boolean.

A boolean variable is one which has the value True or False. A boolean system is one which is primarily composed of boolean variables.

George Boole (1815 - 1864) was an English mathematician who helped establish the modern field of mathematics called symbolic logic. Boolean logic uses words called operators. The three main operators are: AND, OR and NOT. Computers actually use a type of Boolean logic in their electronic circuits, but where this logic is most useful to your research needs is that databases can use Boolean's logic to locate items from your search. The shaded areas in the following diagrams represent the results you would receive from doing a search using the Boolean operators AND or OR in the same database: using OR retrieves a large number of items: using AND narrows the number of items returned: using NOT refines a search by allowing you to exclude a term

A structured method of combining specific search terms, allowing for the efficient search for information in databases. Enables the user to combine search terms with operators such as AND, OR, and NOT.

common system of logic that uses operators such as AND, OR, NOR, and NOT and is used to find information with search engines. To search for a document that included the words "January" and " March," but not "February, " the Boolean expression would be "January AND March NOT February."

Whenever you see a Web search tool or database query system that allows you to use AND, OR, and NOT to hone your search, the chances are it uses Boolean techniques. The most common Boolean operators are AND (you're looking for all terms), OR (you're looking for at least one of the terms), and NOT (you're excluding a term).

special words that give a person more control over Search Engine results

A logical system used to express one of two states, such as on or off (yes or no, 1 or 0, etc.)

A value of 0 or 1 represented internally in binary notation. Any operation in which each of the operands and the result take one of two values.

A system in which two search keys (not one search key and one subkey) must relate to each other in one of the following ways: AND Both search keys must be in the record. OR Either search key must be in the record, and it doesn’t matter whether the other one is or not. NOT The first search key must be in the record and the second one may not be. XOR Either the first or second search key must be in the record, and the other one may not be.

a primitive type that can hold the values true or false.

The Java primitive representing true? or false?.

The Java Object representing a boolean primitive.

In computer science and digital electronics, this term means an expression with two possible values, "true" and false, ". The most common Boolean operators are AND, OR and NOT.

Refers to an expression or variable that can have only a true or false value. The Java programming language provides the boolean type and the literal values true and false.

Logic named for George Boole, English mathematician and philosopher. In this form of logic, values have two states (true or flase, on or off, etc.). Computers use Boolean logic to perform virtually all computation.

a system of logical thought developed by the 19th-century mathematician George Boole. On the Web, Boolean searches can be used to develop search engine queries. Boolean searches can increase the accuracy of your results because they specify relationships between keywords or phrases. The most commonly used Boolean operators are: AND, OR, and NOT.

Having two possible values (such as 0 or 1, on or off, true or false). Referring to a system of algebra and logic developed by English mathematician. Boolean operators are AND, OR and NOT when used in a search.

referring to logical or algebraic operations, formulated by George Boole, involving variables with two values, such as Value 1 and Value 2; Value 1 or Value 2; and Value 1 but not Value 2. (ALA)

George Boole, English logician (1815-1864), is credited with the invention of 'Boolean logic' in which information is represented as only one of two choices available such as true or false, 0 or 1, on or off.

a system of logical thought developed by English mathematician George Boole (1815-64) that defines variables with the value of either true or false, represented in a classical computer as a 1 or 0 respectively, for which simple logical constraints can be applied that have a true or false result. For example, the AND and OR operators are common Boolean logic gates that are defined as follows: AND, returns true if and only if the compared variables have the same values. Ex. (1 AND 1) = 1, (1 AND 0) = 0 OR, returns true if any of the compared variables have the value true. Ex. (1 OR 0) = 1, (0 OR 0) = 0

Search Strategy (sometimes called Boolean logic): a method in which the information searcher identifies and defines essential elements of a topic or question and uses the connectors “and,” “or,” or “not” to search for a combination of words or phrases on a database (see also “keyword search”). ullets: a heavy dot for calling attention to particular sections of text.

A type of query logic that is used by many search engines to refine search results. When you perform a Boolean search, you use keywords to sift through a database. Boolean searching allows the combination of keywords with connecting terms called operators. The three basic operators are the terms AND, OR and NOT. Boolean also uses "wildcard" keywords and parentheses. Learn more about Boolean searches on our Help page.

Explicit Boolean search using AND/OR/NOT and parentheses to define the query. Examples of correct expressions are: "cat AND dog," "cat NOT dog," "cat OR (dog NOT nose)." Note that the operator NOT has the meaning "without." Format

An operation that follows the rules of Boolean algebra.

19th Century mathematician, George Boole, cam up with this for a better and more advanced in search. This is used so that your search could be limited to a certain topic. OR, AND, NOR, NOT, and XOR can be used. http://www.webopedia.com/TERM/B/Boolean_expression.html

Search operators such as AND, OR, and NOT used in between keywords to determine relationship of words.

In programming, Boolean refers to a combinatorial system devised by George Boole that combines propositions with the logical operators AND and OR and IF THEN and EXCEPT and NOT.

An enumeration whose values are true and false.

data object which represents whether some condition is true or not. There are only two such objects: true and false.

primitive with two possible values: true and false. The Boolean object is a wrapper around a boolean primitive.

A value that can be either true or false.

A Boolean true or false value. Representations of true are "true" and ; false is denoted as "false" or .

A primitive Java data type that contains a truth value. The two possible values of a boolean variable are true and false.

A binary data type. Boolean values are 16-bit (2-byte) values that can hold the True or False constants or their equivalents (-1 and 0). The Boolean data type uses the prefix bln but doesn't have a type-declaration character.

Variable type named after George Boole who invented the representation of data with either true or false (or 0s and 1s). A boolean can therefore take on the value of either true or false. Conditional statements are boolean expressions. A boolean variable b may be filled thus (among other ways): b := (y = 2); If y is 2 then b will become true, otherwise b will be false. Back to where you were

logic - The use of AND, OR and NOT applied to retrieving documents from an online database. Any variable that can have a logical value of true or false; works with logical rather than numeric relationships. Named for Dr. Boole who was a mathematician that developed a notational system for algebraic manipulation of sets which included the use of AND, OR, and NOT as logical operators. AND = "both"; "all of these"; each record retrieved must contain all of the search terms. OR = "either"; "any of these"; each record retrieved must contain at least one of the search terms. NOT = "no"; eliminates records with the term indicated.

(pronounced boo-lee-un) Named for G. Boole (1815-64), an English mathematician. A system using algebraic rules and symbols to analyze symbolic logic, now widely used by computers since Boolean true-false results are compatible with binary code. It uses a defined set of operators such as AND, OR, and NOT. As used by search engines on the Internet, it means that any documents that meet the criteria of the Boolean operators would be "true" and all others "false". Thus, only "true" documents would be displayed.

A system of logic that, when applied to searches, modifies search terms with the “operators” AND, OR, and NOT. Boolean operators allow you to broaden or narrow the range of your search.

A data type that has a value of true or false.

A method of searching a computerized database which uses the operators "and," "or," and "not" to combine concepts.

proof that something is true or false, undesirable for the Agilistalist who is spreading falsehood and placebo. See avoid boolean

A Boolean is a variable type which can have only two values: True or False.

To perform more complex searches. Boolean searches may be performed with "AND" and "OR" logic. - Placing "AND" between two keywords or phrases means that both words must be present in the web page in order for it to be selected. - Using "OR" between two keywords or phrases means that only one of the two must be present for the web page to be selected. - Either an "AND" or an "OR" must separate each word. Parentheses may be used to group keywords. This allows the creation of phrases. Wildcard characters (e.g., "*" or "?") are not allowed. The boolean operator "NOT" is not allowed. Sort by

Logical operations involving TRUE and FALSE, and the operators AND, OR, and NOT. Booleans are commonly used when constructing search queries.

A word which, when capitalized, can be used within searches to provide for more specific search results. The Boolean words that will work with iWon search are: AND, NOT, OR, and NEAR.

A binary numbering system named after mathematician George Boole in which zero and one are the only two values that can be returned. Traditionally, a value of zero represents FALSE while a value of one represents TRUE. A value of TRUE or FALSE, where TRUE=1 AND FALSE=0.

PL/SQL Data Type used to declare variables that can take one of the following values: TRUE, FALSE or NULL. Please note that "boolean" cannot be used as the datatype of a column. Use something like this instead: ... col1 NUMBER(1,0) CHECK (col1 IN (1,0)), ... col2 VARCHAR2(1) CHECK (col2 IN ('T','F'))

Logical propositions, such as AND, OR and IF, often used to refine searches or filter computer data. Named after Boole, a 19th c. English mathematician.

double if private throws

double instanceof return transient

a relatively new intrinsic data type -- it is preferred over various other substitutes that were present in earlier versions and languages

a type of Compound Object

a peace sign or an international no sign

an on/off attribute

Back Links