- A process of reasoning in which a conclusion is drawn from a set of premises . Usually confined to cases in which the conclusion is supposed to follow from the premises, i.e. the inference is logically valid . See also logical calculus, model theory, proof theory . In spite of his own claims, Sherlock Holmes's methods were not typically deductive, but rather exercises of abduction.
Philosophy dictionary. Academic. 2011.
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déduction — [ dedyksjɔ̃ ] n. f. • 1355; lat. deductio I ♦ Action de soustraire une somme d une autre. ⇒ décompte, défalcation, retranchement, soustraction. Faire la déduction des sommes déjà payées. Déduction faite des arrhes versées. Somme qui entre, vient… … Encyclopédie Universelle
deduction — de·duc·tion n 1: an amount allowed by tax laws to be subtracted from income in order to decrease the amount of income tax due see also internal revenue code in the important laws section compare credit, ex … Law dictionary
Deduction — • An argument or reasoning process, that kind of mediate inference by which from truths already known we advance to a knowledge of other truths necessarily implied in the former; the mental product or result of that process. Also a method, the… … Catholic encyclopedia
deduction — 1 Deduction, abatement, rebate, discount are comparable when they mean an amount subtracted from a gross sum. Deduction is interchangeable with any of the others but not without some loss in precision. An abatement is a deduction from a levied… … New Dictionary of Synonyms
Deduction — Déduction Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom … Wikipédia en Français
Deduction — may refer to: in logic: Deductive reasoning, inference in which the conclusion is of no greater generality than the premises Natural deduction, an approach to proof theory that attempts to provide a formal model of logical reasoning as it… … Wikipedia
Deduction — De*duc tion, n. [L. deductio: cf. F. d[ e]duction.] 1. Act or process of deducing or inferring. [1913 Webster] The deduction of one language from another. Johnson. [1913 Webster] This process, by which from two statements we deduce a third, is… … The Collaborative International Dictionary of English
déduction — DÉDUCTION. s. f. Soustraction. On lui a payé tant en déduction du principal. La succession, déduction faite des frais, monte à telle somme. [b]f♛/b] Il signifie aussi, Narration, énumération en détail. Faire une longue déduction de ses raisons,… … Dictionnaire de l'Académie Française 1798
deduction — Deduction. Soustraction. On luy a payé tant en deduction du principal. Il signifie aussi, Narration, enumeration en detail. Faire une longue deduction de ses raisons … Dictionnaire de l'Académie française
deduction — deduction, deductive The use of logical rules to arrive at a set of premisses from which certain conclusions must follow. Deduction begins with theory , moves to hypotheses derived from the theory, and then tests hypotheses via prediction and… … Dictionary of sociology
deduction — early 15c., action of deducting, from M.Fr. déduction or directly from L. deductionem (nom. deductio), noun of action from pp. stem of deducere (see DEDUCE (Cf. deduce)). Meaning that which is deducted is from 1540s. As a term in logic, from L.L … Etymology dictionary