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 Newsday, the Penny Press, The Wall Street Journal, the LA Times, the King Feature Syndicate and The New York Times.
(Another definition for quod that I've seen is " Prison - the Q in QED".)
I've seen this clue in the Newsday, the Penny Press, The Wall Street Journal, the LA Times, the King Feature Syndicate and The New York Times.
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