What is the meaning of QED?

(latin) QED - "quod erat demonstrandum" - which was to be demonstrated

Carl Meissner
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APACarl Meissner. (2011). qed. Retrieved September 21, 2026, from http://smartdefine.org/qed/definitions/1965582
ChicagoCarl Meissner. 2011. "qed" http://smartdefine.org/qed/definitions/1965582 (accessed September 21, 2026).
HarvardCarl Meissner 2011, qed, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/qed/definitions/1965582>.
MLACarl Meissner. "qed" 25 May 2011. Web. 21 September 2026. <http://smartdefine.org/qed/definitions/1965582>
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