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syllogism

noun/ˈsɪlədʒɪz(ə)m/

C2CEFR level
78/100Rarity: rare
TechnicalRegister

A form of deductive reasoning in which a conclusion follows from two premises.

'All men are mortal; Socrates is a man; therefore Socrates is mortal' is the textbook syllogism.

Similar: deduction, argument, inference

Origin: From Greek syllogismos 'inference', from syn 'together' + logizesthai 'to reason'.

Topic: logic in General English

Rarity runs from 0 (a word everyone knows) to 100 (almost never seen outside specialist or literary writing). Level is the word's real difficulty on the CEFR scale, from A1 to C2.

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More general words: logic