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quod erat inveniendum - translation to russian
ABBREVIATION TO INDICATE THE COMPLETION OF A MATHEMATICAL PROOF
Quod erat demonstrandum; Cqfd; Q.E.D; Quad Erat Demonstrandum; Q.E.F.; Quod Erat Demonstrandum; Quod Erat Demonstrantum; Q.e.d.; Q E D; Q. E. D.; Q.E.F; Quod erat demonstratum; Quod erat faciendum; Ὅπερ ἔδει δειξαι; QEF; Proving a point; C.Q.F.D.; Ὅπερ ἔδει δεῖξαι; Quod erat demonstrandom
![Ethics]]'', Part 1, ''Q.E.D.'' is used at the end of ''Demonstratio'' of ''Propositio III'' on the right hand page](https://commons.wikimedia.org/wiki/Special:FilePath/Spinoza Ethica Pars1 Prop1.jpg?width=200 "Ethics]]'', Part 1, ''Q.E.D.'' is used at the end of ''Demonstratio'' of ''Propositio III'' on the right hand page")
quod erat inveniendum
Латинский язык
что и требовалось найти
quod erat demonstrandum
[kwɔderætdemən'strædəm]
Латинский язык
что и требовалось доказать
quod erat faciendum
[kwɔderætfæki'endəm]
Латинский язык
что требовалось сделать
Definition
quod erat demonstrandum
[kw?d ??rat d?m?n'strand?m]
used, especially at the conclusion of a formal proof, to convey that something demonstrates the truth of one's claim.
Origin
L., lit. 'which was to be demonstrated'.
Wikipedia
Q.E.D.
Q.E.D. or QED is an initialism of the Latin phrase quod erat demonstrandum, meaning "which was to be demonstrated". Literally it states "what was to be shown". 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 complete.
