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syl·lo·gism /ˈsɪləˌʤɪzəm/

三段論法,推論法,演繹

From: Network Terminology

syllogism

*三段論

Syl·lo·gism n. Logic The regular logical form of every argument, consisting of three propositions, of which the first two are called the __premises__, and the last, the __conclusion__. The conclusion necessarily follows from the premises; so that, if these are true, the conclusion must be true, and the argument amounts to demonstration;

Note: as in the following example:

Every virtue is laudable;

Kindness is a virtue;

Therefore kindness is laudable.

These propositions are denominated respectively the __major premise__, the __minor premise__, and the __conclusion__.

Note: ☞ If the premises are not true and the syllogism is regular, the reasoning is valid, and the conclusion, whether true or false, is correctly derived.

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From: WordNet (r) 2.0

syllogism

n : deductive reasoning in which a conclusion is derived from

two premises