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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).
8 Οκτ 2018 · The Latin quod erat demonstrandum literally means “what was to be demonstrated.”. It is actually a transliteration of a phrase ancient Greek mathematicians placed at the end of logical proofs—a kind of stamp that says “I proved what I set out to. Usage for the abbreviation Q.E.D. is found from the 17th century.
What does the phrase quod erat demonstrandum mean? There are two meanings listed in OED's entry for the phrase quod erat demonstrandum . See ‘Meaning & use’ for definitions, usage, and quotation evidence.
The meaning of QUOD ERAT DEMONSTRANDUM is which (is what) was to be shown (originally) —abbreviation QED—used at the end of a logical or mathematical proof.
Q.E.D. is an initialism of the Latin phrase quod erat demonstrandum, originating from the Greek analogous hóper édei deîxai, meaning "which had to be demonstrated".
Learn the definition of 'quod erat demonstrandum'. Check out the pronunciation, synonyms and grammar. Browse the use examples 'quod erat demonstrandum' in the great English corpus.
Quod erat demonstrandum means 'which was to be shown, or proved'. (at the conclusion of a proof, esp of a theorem in Euclidean geometry) which was to be proved.... Click for pronunciations, examples sentences, video.
