Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- phrase which was to be proved; which was to be demonstrated.
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
From Latin quod erat dēmonstrandum ("that which was to be proved"), calqued from Ancient Greek ὅπερ ἔδει δεῖξαι (hoper edei deixai, "precisely what was required to be proved").
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