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The Devil's Dictionary: Logic

by Ambrose Bierce LODGERLOGOMACHYLOGIC -n. The art of thinking and reasoning in strict accordance with the limitations and incapacities of the human misunderstanding. The basic of logic is…

Brewer's: Chop Logic

(To). To bandy words; to altercate. Lord Bacon says, “Let not the council chop with the judge.” (See Chop And Change .) “How now, how now, chop logic! What is this? `Proud,' and `I thank…

logic

(Encyclopedia) logic, the systematic study of valid inference. A distinction is drawn between logical validity and truth. Validity merely refers to formal properties of the process of inference. Thus…

fuzzy logic

(Encyclopedia) fuzzy logic, a multivalued (as opposed to binary) logic developed to deal with imprecise or vague data. Classical logic holds that everything can be expressed in binary terms: 0 or 1,…

logic circuit

(Encyclopedia) logic circuit, electric circuit whose output depends upon the input in a way that can be expressed as a function in symbolic logic; it has one or more binary inputs (capable of…

Brewer's: Inexorable Logic of Facts

(The). This was Mazzini's happy expression: “Nella genesi dei fatti la logica è inesarabile.” Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894InfallibilityInertia A B C…

Nagel, Ernest

(Encyclopedia) Nagel, Ernest, 1901–85, American philosopher, b. Nové Město (now in the Czech Republic), grad. College of the City of New York, 1923, and Columbia (Ph.D., 1930). His family emigrated…

De Morgan, Augustus

(Encyclopedia) De Morgan, AugustusDe Morgan, Augustusdə môrˈgən [key], 1806–71, English mathematician and logician, b. India. A noted teacher, he was professor of mathematics (1828–31, 1836–66) at…

deduction

(Encyclopedia) deduction, in logic, form of inference such that the conclusion must be true if the premises are true. For example, if we know that all men have two legs and that John is a man, it is…

induction, in logic

(Encyclopedia) induction, in logic, a form of argument in which the premises give grounds for the conclusion but do not necessitate it. Induction is contrasted with deduction, in which true premises…