Typo missing \vee

tex/diffgeo/stokes.tex

@@ -162,7 +162,7 @@ \section{Pullbacks}
 \[ \phi(v) = \phi_1(v) w_1 + \dots + \phi_n(v) w_n \]
 where each $\phi_i$ takes in a $v \in V$ and returns a real number.
 We know also that $\alpha$ can be written concretely as
-\[ \alpha = \sum_{J \subseteq \{1, \dots, n\}} f_J w_J. \]
+\[ \alpha = \sum_{J \subseteq \{1, \dots, n\}} f_J w_J^\vee. \]
 Then, we define
 \[
 	\phi^\ast\alpha