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The phrase quod erat demonstrandum is a translation into Latin from the Greek ὅπερ ἔδει δεῖξαι (hoper edei deixai; abbreviated as ΟΕΔ). The meaning of the Latin phrase is "that [thing] which was to be demonstrated" (with demonstrandum in the gerundive).
Quod erat demonstrandum: Understanding and Explaining Equations in Physics Teacher Education Ricardo Karam • Olaf Krey Published online: 4 February 2015 Springer Science+Business Media Dordrecht 2015 Abstract In physics education, equations are commonly seen as calculation tools to solve problems or as concise descriptions of experimental ...
Q.E.D. Quod Erat Demonstrandum. “I believe in intuition and inspiration. Imagination is more important than knowledge. For knowledge is limited, whereas imagination embraces the entire world, stimulating progress, giving birth to evolution. It is, strictly speaking, a real factor in scientific research.” – Albert Einstein – 1931
The phrase quod erat demonstrandum is a translation into Latin from the Greek ὅπερ ἔδει δεῖξαι (hoper edei deixai; abbreviated as ΟΕΔ). Translating from the Latin phrase into English yields "that was to be demonstrated".
19 Φεβ 2015 · It's an abbreviation of quod erat demonstrandum, which is the Latin translation of a Greek phrase meaning "which had to be proven". To the ancient Greeks, a proof wasn't complete unless the last sentence in your proof was basically the statement of the theorem.
quod erat demonstrandum. used to convey that a fact or situation demonstrates the truth of one's theory or claim, especially to mark the conclusion of a formal proof; the Latin phrase, meaning literally ‘which was to be demonstrated’, is a translation of the Greek phrase used in a number of ... ... Access to the complete content on Oxford ...
Quod erat demonstrandum. Harold p. fawcett, Ohio State University, Columbus, Ohio. The essence of mathematics is not in the form of a proof as it appears on paper, and the intellectual glow which its study engenders arises through an insight into mathematical patterns and processes.