# deduction

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## de·duc·tion

(dĭ-dŭk′shən)
n.
1. The act of deducting; subtraction.
2. An amount that is or may be deducted: tax deductions.
3. The drawing of a conclusion by reasoning; the act of deducing.
4. Logic
a. The process of reasoning in which a conclusion follows necessarily from the stated premises; inference by reasoning from the general to the specific.
b. A conclusion reached by this process.

## deduction

(dɪˈdʌkʃən)
n
1. (Mathematics) the act or process of deducting or subtracting
2. (Accounting & Book-keeping) something, esp a sum of money, that is or may be deducted
3. (Logic)
a. the process of reasoning typical of mathematics and logic, whose conclusions follow necessarily from their premises
b. an argument of this type
c. the conclusion of such an argument
4. (Logic) logic
a. a systematic method of deriving conclusions that cannot be false when the premises are true, esp one amenable to formalization and study by the science of logic
b. an argument of this type. Compare induction4
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

## de•duc•tion

(dɪˈdʌk ʃən)

n.
1. the process of deducting; subtraction.
2. something that may be deducted.
3. the act or process of deducing.
4. something that is deduced.
5.
a. a process of reasoning in which a conclusion follows necessarily from the premises presented; inference from the general to the particular.
b. a conclusion reached by this process. Compare induction (def. 3).
[1400–50; < Latin]

## de·duc·tion

(dĭ-dŭk′shən)
1. The process of reasoning in which a conclusion follows necessarily from the premises; reasoning from the general to the specific.
2. A conclusion reached by this process.
Usage The logical processes known as deduction and induction work in opposite ways. When you use deduction, you apply general principles to specific instances. Thus, using a mathematical formula to figure the volume of air that can be contained in a gymnasium is applying deduction. Similarly, you use deduction when applying a law of physics to predict the outcome of an experiment. By contrast, when you use induction, you examine a number of specific instances of something and make a generalization based on them. Thus, if you observe hundreds of examples in which a certain chemical kills plants, you might conclude by induction that the chemical is toxic to all plants. Inductive generalizations are often revised as more examples are studied and more facts are known. Certain plants that you have not tested, for instance, may turn out to be unaffected by the chemical, and you might have to revise your thinking. In this way, an inductive generalization is much like a hypothesis.
ThesaurusAntonymsRelated WordsSynonymsLegend:
 Noun 1 deduction - a reduction in the gross amount on which a tax is calculated; reduces taxes by the percentage fixed for the taxpayer's income brackettax benefit, tax break - a tax deduction that is granted in order to encourage a particular type of commercial activitybusiness deduction - tax write-off for expenses of doing businessexemption - a deduction allowed to a taxpayer because of his status (having certain dependents or being blind or being over 65 etc.); "additional exemptions are allowed for each dependent"write-down, write-off - (accounting) reduction in the book value of an asset 2 deduction - an amount or percentage deducteddiscountallowance, adjustment - an amount added or deducted on the basis of qualifying circumstances; "an allowance for profit"trade discount - a discount from the list price of a commodity allowed by a manufacturer or wholesaler to a merchant 3 deduction - something that is inferred (deduced or entailed or implied); "his resignation had political implications"illation, inference - the reasoning involved in drawing a conclusion or making a logical judgment on the basis of circumstantial evidence and prior conclusions rather than on the basis of direct observation 4 deduction - reasoning from the general to the particular (or from cause to effect)abstract thought, logical thinking, reasoning - thinking that is coherent and logicalsyllogism - deductive reasoning in which a conclusion is derived from two premises 5 deduction - the act of subtracting (removing a part from the whole); "he complained about the subtraction of money from their paychecks"subtractionreduction, step-down, diminution, decrease - the act of decreasing or reducing somethingbite - a portion removed from the whole; "the government's weekly bite from my paycheck"withholding - the act of deducting from an employee's salary 6 deduction - the act of reducing the selling price of merchandisereduction, step-down, diminution, decrease - the act of decreasing or reducing something
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.

## deduction

noun
1. It was a pretty astute deduction.
2. 'How did you guess?' 'Deduction,' he replied.
3. your gross income, before tax and insurance deductions
4. the deduction of tax at 20%
Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. 2002 © HarperCollins Publishers 1995, 2002

## deduction

noun
1. An amount deducted:
2. A position arrived at by reasoning from premises or general principles:
Translations
إستِخْلاص، إسْتِنْتاجخَصْم، حَسْمنَتيجَه
dedukcesrážka
deduktiopäätelmäpäättelyvähennys
afleiîslafrádráttur
dedukcia
avdraghärledningslutledningslutsats

## deduction

[dɪˈdʌkʃən] N
1. (= inference) →
what are your deductions?¿cuáles son sus conclusiones?
2. (= act of deducting) → ; (= amount deducted) →
tax deductions
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

## deduction

[dɪˈdʌkʃən] n
[points, amount] →
[tax, interest] →
(amount subtracted)
(= conclusion) →
Collins English/French Electronic Resource. © HarperCollins Publishers 2005

## deduction

n
(= act of deducting)Abziehen nt, → Abzug m; (= sth deducted, from price) → Nachlass m (→ from für, auf +acc); (from wage) → Abzug m
(= act of deducing)Folgern nt, → Folgerung f; (= sth deduced)(Schluss)folgerung f; (Logic) → Deduktion f; by a process of deductiondurch Folgern
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

## deduction

[dɪˈdʌkʃn] n
a. (inference) →
b. (subtraction) → ; (from wages) → trattenuta
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995

## deduce

(diˈdjuːs) verb
to work out from facts one knows or guesses. From the height of the sun I deduced that it was about ten o'clock.
deduction (diˈdakʃən) noun
1. the act of deducing.
2. something that has been deduced. Is this deduction accurate?

## deduct

(diˈdakt) verb
to subtract; to take away. They deducted the expenses from his salary.
deˈduction (-ʃən) noun
something that has been deducted. There were a lot of deductions from my salary this month.
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.

## de·duc·tion

n. deducción.
English-Spanish Medical Dictionary © Farlex 2012
References in classic literature ?
I pondered over our short conversation, however, and endeavoured to draw my deductions from it.
"Only that you have disarranged our little deductions. Your marriage, you say?"
But he had never connected these scientific deductions as to the origin of man as an animal, as to reflex action, biology, and sociology, with those questions as to the meaning of life and death to himself, which had of late been more and more often in his mind.
Why, of course, the laws of nature, the deductions of natural science, mathematics.
If I choose thus to be banal, it is only to remind you that Collier's theories are today as exploded as the ludicrous deductions of the Spanish school.
The little that was left in the world, when all these deductions were made, it was Mrs General's province to varnish.
Along that line of thought such a deduction is indubitable, as indubitable as the deduction Voltaire made in jest (without knowing what he was jesting at) when he saw that the Massacre of St.
He has the power of observation and that of deduction. He is only wanting in knowledge; and that may come in time.
They might therefore, with great propriety, be considered as something more than a mere deduction from the real representatives of the nation.
For, thought Ahab, while even the highest earthly felicities ever have a certain unsignifying pettiness lurking in them, but, at bottom, all heart-woes, a mystic significance, and, in some men, an archangelic grandeur; so do their diligent tracings-out not belie the obvious deduction. To trail the genealogies of these high mortal miseries, carries us at last among the sourceless primogenitures of the gods; so that, in the face of all the glad, hay-making suns, and soft-cymballing, round harvest-moons, we must needs give in to this: that the gods themselves are not for ever glad.
My light burned till two and three in the morning, which led a good neighbour woman into a bit of sentimental Sherlock-Holmes deduction. Never seeing me in the day-time, she concluded that I was a gambler, and that the light in my window was placed there by my mother to guide her erring son home.
Therefore I say that in the perfectly unjust man we must assume the most perfect injustice; there is to be no deduction, but we must allow him, while doing the most unjust acts, to have acquired the greatest reputation for justice.

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