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Q.E.D. or QED is an initialism of the Latin phrase quod erat demonstrandum, meaning "that which was to be demonstrated". Literally, it states "what was to be shown". [ 1 ] Traditionally, the abbreviation is placed at the end of mathematical proofs and philosophical arguments in print publications, to indicate that the proof or the argument is ...
quod erat faciendum (Q.E.F.) which was to be done: Or "which was to be constructed". Used in translations of Euclid's Elements when there was nothing to prove, but there was something being constructed, for example a triangle with the same size as a given line. quod est (q.e.) which is: quod est necessarium est licitum: what is necessary is lawful
Q.E.D. (quod erat demonstrandum), used at the end of a mathematical proof; Quantum electrodynamics, a field in particle physics; QED manifesto and project, a database of mathematical knowledge; QED: The Strange Theory of Light and Matter, a 1985 physics book by Richard Feynman
In mathematics, the tombstone, halmos, end-of-proof, or Q.E.D. symbol "∎" (or " ") is a symbol used to denote the end of a proof, in place of the traditional abbreviation "Q.E.D." for the Latin phrase "quod erat demonstrandum". It is inspired by the typographic practice of end marks, an element that marks the end of an article. [1] [2]
WCRX (88.1 MHz) is an FM radio station based in Chicago, Illinois. WCRX is a non-commercial campus radio station owned and operated by Columbia College Chicago. The station is located at 33 East Congress in Chicago and operated by students in the school's radio department. WCRX provides music, news, sports, and community affairs programming.
WZRD (88.3 MHz) is the student-run FM radio station at Northeastern Illinois University, Chicago, Illinois, US, founded in 1974. The station serves the Chicago area. The station is licensed by the FCC to Northeastern Illinois University. [3] WZRD broadcasts on a freeform radio format and is a Pacifica Radio affiliate. [4]
Chicago-area transit agencies are facing an estimated fiscal cliff of $730 million in 2026. Last year, the Civic Federation projected a total savings of $200 million to $250 million per year for ...
WDRV (97.1 FM, "The Drive") is a commercial radio station licensed to serve Chicago, Illinois. The station is owned by Hubbard Broadcasting and airs a classic rock format. Its studios were originally located in the John Hancock Center. [5] On May 11, 2018, WDRV moved into all new, state-of-the-art, digital studios in Chicago's Prudential Plaza.