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Deductive reasoning Facts for Kids. *Kiddle Encyclopedia.*

**Deduction** is one of the two main types of reasoning. The other is induction. In deduction, we apply a general rule to a particular case.

Deductive arguments are attempts to show that a conclusion must follow from a set of premises or hypotheses. A deductive argument is valid if the conclusion follows necessarily from the premises.

Aristotle, the first person we know who wrote down laws of deduction, gives this example of deduction:

- All men are mortal.
- Socrates is a man.
- Therefore, Socrates is a mortal.

The first two statements are called "premises". The last statement is called the "conclusion". The conclusion is taken from the premises.

- If the conclusion is wrong, then at least one of the premises is wrong
- If one of the premises is wrong, the conclusion may also be wrong.

Deductive reasoning is often called "top-down logic", whereas inductive reasoning is called "bottom-up reasoning".

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Deductive reasoning Facts for Kids. - This page was last modified on 1 July 2019, at 18:31.