Part of Q.E.D. (4)
(Other definitions for erat that I've seen before include "Quod - - demonstrandum (QED)" , "The E of QED" .)
I've seen this clue in the Penny Press, The New York Times, the LA Times, the Newsday, the King Feature Syndicate and The Wall Street Journal.
(Another definition for quod that I've seen is " Prison - the Q in QED".)
I've seen this clue in the Penny Press, The New York Times, the LA Times, the Newsday, the King Feature Syndicate and The Wall Street Journal.
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