Reference > Brewer’s Dictionary > Q.E.D.

 Q.Q.E.F. 
CONTENTS · BIBLIOGRAPHIC RECORD
E. Cobham Brewer 1810–1897. Dictionary of Phrase and Fable. 1898.
 
Q.E.D.
 
Quod erat demonstrandum. Three letters appended to the theorems of Euclid, meaning: Thus have we proved the proposition stated above, as we were required to do.   1
 


 Q.Q.E.F. 

 
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