This is e-TeX, Version 3.14159-2.1 (Web2C 7.4.5) (format=latex 2004.8.15)  18 AUG 2004 12:58
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**2004-08-19.tex
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! Undefined control sequence.
<recently read> \Q 
                   
l.52   variety defined over $\Q
                               $ that is $\Q$-isogenous to an abelian
? X
 
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