# deduction

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Related to deductions: Tax deductions, Payroll deductions, Standard Deductions

## 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

## 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

## 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%

## 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

## deduction

[dɪˈdʌkʃən] n
[points, amount] →
[tax, interest] →
(amount subtracted)
(= conclusion) →

## 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

## deduction

[dɪˈdʌkʃn] n
a. (inference) →
b. (subtraction) → ; (from wages) → trattenuta

## 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.

## de·duc·tion

n. deducción.
References in classic literature ?
He was not a remarkably fluent reader, and was in the habit of reading in a sort of recitative half-aloud, by way of calling in his ears to verify the deductions of his eyes.
Voltaire might have canted if he'd stood in my shoes; but the brains' - with a rattling fillip on his bald head - 'the brains were clear and active, and I saw and made no deductions.
Why, of course, the laws of nature, the deductions of natural science, mathematics.
Our player confines himself not at all; nor, because the game is the object, does he reject deductions from things external to the game.
If we are required to believe in doctrines that seem not in conformity with the deductions of human wisdom, let us never forget that such is the mandate of a wisdom that is infinite.
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.
But, before I begin to draw deductions, let me ask you a few questions.
We have got to the deductions and the inferences," said Lestrade, winking at me.
Only that you have disarranged our little deductions.
There were twenty-three other deductions which would be of more interest to experts than to you.
If the other thing you have just learned," she continued, "has led to as erroneous deductions as the first you are little richer in knowledge than you were before.
Of course, it is all the same to me, but just now--and perhaps only at this moment--I desire that all those who are to judge of my action should see clearly out of how logical a sequence of deductions has at length proceeded my

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