Minor sentence correction

main.tex

@@ -791,7 +791,7 @@ Then fix a value of $q$:
 	\cap [0, \chern_1^{\beta}(F)]
 \end{equation}
 as noted at the beginning of this section (\ref{sec:refinement}).
-Firstly, we can ignore $r$-values for which $c:=\chern_1(E)$ is not integral:
+Firstly, we only consider $r$-values for which $c:=\chern_1(E)$ is not integral:
 
 \begin{sagesilent}
 var("a b n") # Define symbols introduce for values of beta and q