quod erat demonstrandum

Borrowed from Latin quod erat dēmōnstrandum (“that which was to be proved”), calqued from Ancient Greek ὅπερ ἔδει δεῖξαι (hóper édei deîxai, “precisely what was required to be proved”).

quod erat demonstrandum (plural quae erant demonstranda)

1. (something) which was to be proved; which was to be demonstrated.

• Q.E.D.

Calque of Ancient Greek ὅπερ ἔδει δεῖξαι (hóper édei deîxai, literally “(that) which was to be demonstrated”).

• (Classical Latin) IPA^(key): /ˈkʷo.de.rat.deː.monsˈtran.dum/, [ˈkʷɔd̪ɛräd̪ːeːmõːs̠ˈt̪rän̪d̪ʊ̃ˑ]
• (modern Italianate Ecclesiastical) IPA^(key): /kwod ˈe.rat de.monˈstran.dum/, [kwɔd̪ ˈɛːrät̪ d̪emonˈst̪rän̪d̪um]

quod erat dēmōnstrandum (plural quae erant dēmōnstranda)

1. which was to be proved; which was to be demonstrated.

• q. e. d., Q. E. D., QED

Borrowed from Latin.

quod erat demonstrandum

1. quod erat demonstrandum

• “quod erat demonstrandum” in The Bokmål Dictionary.

Borrowed from Latin.

quod erat demonstrandum

1. quod erat demonstrandum

• “quod erat demonstrandum” in The Nynorsk Dictionary.

quod erat demonstrandum

1. quod erat demonstrandum (which was to be demonstrated)

   Synonyms: QED, CQD