Definition of quod erat demonstrandum in English:

Share this entry

quod erat demonstrandum

Pronunciation: /ˌkwäd ˌerət ˌdemənˈsträndəm/
(abbreviation QED)

noun

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.

Origin

Latin, literally 'which was to be demonstrated'.

For editors and proofreaders

Syllabification: quod e·rat de·mon·stran·dum

Share this entry
 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.