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Webster 1913 Edition


Deduction

De-duc′tion

,
Noun.
[L.
deductio
: cf. F.
déduction
.]
1.
Act or process of deducing or inferring.
The
deduction
of one language from another.
Johnson.
This process, by which from two statements we deduce a third, is called
deduction
.
J. R. Seely.
2.
Act of deducting or taking away; subtraction;
as, the
deduction
of the subtrahend from the minuend
.
3.
That which is deduced or drawn from premises by a process of reasoning; an inference; a conclusion.
Make fair
deductions
; see to what they mount.
Pope.
Syn. – See
Induction
.

Webster 1828 Edition


Deduction

DEDUCTION

,
Noun.
1.
The act of deducting.
2.
That which is deducted; sum or amount taken from another; defalcation; abatement; as, this sum is a deduction from the yearly rent.
3.
That which is drawn from premises; fact, opinion, or hypothesis, collected from principles or facts stated, or established data; inference; consequence drawn; conclusion; as, this opinion is a fair deduction from the principles you have advanced.

Definition 2024


deduction

deduction

See also: déduction

English

Noun

deduction (plural deductions)

  1. That which is deducted; that which is subtracted or removed
  2. A sum that can be removed from tax calculations; something that is written off
    You might want to donate the old junk and just take the deduction.
  3. (logic) A process of reasoning that moves from the general to the specific, in which a conclusion follows necessarily from the premises presented, so that the conclusion cannot be false if the premises are true.
  4. A conclusion; that which is deduced, concluded or figured out
    He arrived at the deduction that the butler didn't do it.
  5. The ability or skill to deduce or figure out; the power of reason
    Through his powers of deduction, he realized that the plan would never work.

Translations