Boolean logic


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Boolean logic

 [boo´le-an]
an algebra that permits operations on sets of elements; it is used in online literature searches. The principal Boolean operators are AND (intersection), OR (union), and NOT (difference).
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Also note that in the output XML file, a Local-Memory type condition basically indicates an AND boolean logic operation and hence, the corresponding RLO value is needed to be ANDed with the RLO value of the other conditions in order to determine the resultant RLO value of the corresponding sub-logic block.
"(i) Human judgments, such as attitude judgments, are often not simply read out from memory, but rather, they are constructed from the cognitive state for the question at hand; and (ii) drawing a conclusion from one question changes the context and disturbs the cognitive system, which then (iii) affects the answer to the next question, producing order effects, so that (iv) human judgments do not always obey the commutative rule of Boolean logic. If we replace "human judgments" with "physical measurements" and replace "cognitive system" with "physical system," then these are exactly the same reasons that led physicists to develop quantum theory in the first place.
Boolean algebra is used to develop Boolean logic. Simply put, Boolean logic is the algebraic interpretation of truth tables.
Although often criticized and now faced with many alternatives, Boolean logic remains the standard for information retrieval systems (Frants et al., 1999; Sparck Jones & Willets, 1997).
We also developed fixed QCA circuit which can be used to get all Boolean logic functions and also to build combinational circuits such as comparators, parity generators and checkers.
(1.) For an explanation of nested searches, read the article about Boolean logic from the West Virginia University College of Law Library, at www.wvu.edul~law/library/guides/boolean.htm.
There is no sense of Boolean logic (which one Google employee believes is not valid anymore--see http://www.wallandbinkley .com/quaedam/?p=64), no double-checking the resources in the top 10 results (of course, 98 percent of Google users do not go past the top 10--I'll bet that the majority of the 2 percent who do are librarians), and probably no thinking involved at all.
"Unlike enterprise search solutions, which index every word in every file," says Harrison, "Abrevity's software first narrows the universe of files down through Boolean logic discovery and then extracts target data such as document summaries, people, places, legal data, social security numbers and even the overall tone or sentiment of a file.
The metalanguage of quantum logic corresponds still to the usual two-valued Boolean logic.
With CompactRIO, engineers can implement multiloop analog PID control systems at loop rates exceeding 100 kS/sec, digital control systems at loop rates up to 1 MS/sec, and evaluate multiple rungs of Boolean logic in less than 25 nsec.
Black-and-white diagrams and boolean logic symbols help drive the precepts home, though Artificial Intelligence For Computer Games does not contain any computer code per se--this is a manual of basic techniques that can generalize to any programming system.