Absurdum
Encyclopedia Britannica
ABSURDUM, Reductio ad, a mode of demonstrating the truth of a proposition, by showing that its contradictory leads to an absurdity. It is much employed by Euclid.
9th ed. Encyclopædia Britannica, vol. 1, p. 59
[27 words — estimated reading time: 1 minute]
[27 words — estimated reading time: 1 minute]