deduction

n. subtraction, reduction, discount; conclusion; method of logical reasoning in which one uses a general rule to determine individual elements

Deduction can refer to one of the following usages:Deductive reasoning, inference in which the conclusion is of no greater generality than the premisesNatural deduction, an approach to proof theory that attempts to provide a formal model of logical reasoning as it "naturally" occursRelating to taxation:Itemized deductionsStandard deduction
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n. deduction, inference, conclusion

(n.)
That which is deducted; the part taken away; abatement; as, a deduction from the yearly rent.
  

(n.)
That which is deduced or drawn from premises by a process of reasoning; an inference; a conclusion.
  

(n.)
Act or process of deducing or inferring.
  

(n.)
Act of deducting or taking away; subtraction; as, the deduction of the subtrahend from the minuend.
  

A method of reasoning by which one infers a conclusion from a set of sentences by employing the axioms and rules of inference for a given logical system. See abduction , induction .
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