Merge pull request #7 from Sinofine/master

typo for bilinear form

poly.tex

@@ -1255,7 +1255,7 @@ \section{The Weil pairing}
   A bilinear form is said to be \emph{non-degenerate} if:
   \begin{itemize}
   \item $e(P,Q)=0$ for all $P$ implies $Q=0$, and
-  \item $e(P,Q)=0$ for all $Q$ implies $Q=0$.
+  \item $e(P,Q)=0$ for all $Q$ implies $P=0$.
   \end{itemize}
 
   A bilinear form is said to be \emph{alternating} if $M_1=M_2$ and