Fixed some typos.

src/fa/tvs/complexify.tex

@@ -14,7 +14,7 @@
         E \ar@{->}[u]^{\iota} \ar@{->}[ru]_{T} & 
         }
         \]
-        \item $\complex(E) = \iota(E) \oplus i\iota(E)$ as a vector space over $\real$. For each $z \in \complex(E)$ with $z = x + iy$, $x = \text{Re}(x)$ and $y = \text{Re}(y)$ are the \textbf{real} and \textbf{imaginary parts} of $z$. 
+        \item $\complex(E) = \iota(E) \oplus i\iota(E)$ as a vector space over $\real$. For each $z \in \complex(E)$ with $z = x + iy$, $x = \text{Re}(x)$ and $y = \text{Im}(y)$ are the \textbf{real} and \textbf{imaginary parts} of $z$. 
     \end{enumerate}
 
     The pair $(\complex(E), \iota)$ is the \textbf{complexification} of $E$, and