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
Deduction is the process of reaching a conclusion about something because of other things that you know to be true. a case that tested his powers of deduction
A deduction is an amount that has been subtracted from a total. your gross income
A method of logical inference Given a cause, deduction infers all logical effects that might arise as a consequence See also: Inference, Abduction, Induction
For tax purposes, the portion of an estate that does not generate tax (such as a marital deduction)
Act of deducting or taking away; subtraction; as, the deduction of the subtrahend from the minuend
An item or expenditure subtracted from adjusted gross income to reduce the amount of income subject to tax
A deduction is a conclusion that you have reached about something because of other things that you know to be true. It was a pretty astute deduction
Any amount taken from an employee's paycheck each pay period Deductions may include health or medical benefits, union dues, and so on
Reasoning in which the premises, if true, guarantee the truth of the conclusion Example, "All cats are mortal; Bill is a cat; therefore, Bill is mortal " Not all deduction is "from general to particular," as is sometimes said Nevertheless, the deduction of predictions of particular observable events from general hypotheses in order to test the hypotheses, is scientifically quite central Contrast: induction See also: logic, hypothetical deductive method
something that is inferred (deduced or entailed or implied); "his resignation had political implications"
Deduction is the act or process of subtracting an amount of money from a total amount. After the deduction of tax at 20 per cent, the interest rate will be 6.2 per cent. In logic, a type of inference or argument that purports to be valid, where a valid argument is one whose conclusion must be true if its premises are true (see validity). Deduction is thus distinguished from induction, where there is no such presumption. Valid deductive arguments may have false premises, as demonstrated by the example: "All men are mortal; Cleopatra is a man; therefore, Cleopatra is mortal." Invalid deductive arguments sometimes embody formal fallacies (i.e., errors of reasoning based on the structure of the propositions in the argument); an example is "affirming the consequent": "If A then B; B; therefore, A" (see fallacy; formal and informal)