contraposition (countable and uncountable, plural contrapositions)
(countable, logic) The statement of the form "if not Q then not P", given the statement "if P then Q".
Opposition; contrast.
Source: Wiktionary
Con"tra*po*si"tion, n. Etym: [Pref. contra- + position: cf. f. conterposition.]
1. A placing over against; opposite position. [Obs.] F. Potter.
2. (Logic)
Definition: A so-called immediate inference which consists in denying the original subject of the contradictory predicate; e.g.: Every S is P; therefore, no Not-P is S.
Source: Webster’s Unabridged Dictionary 1913 Edition
27 February 2025
(verb) reach the summit (of a mountain); “They breasted the mountain”; “Many mountaineers go up Mt. Everest but not all summit”
The earliest credible evidence of coffee-drinking as the modern beverage appeared in modern-day Yemen. In the middle of the 15th century in Sufi shrines where coffee seeds were first roasted and brewed for drinking. The Yemenis procured the coffee beans from the Ethiopian Highlands.
