diff --git a/src/topology/main/quotient.tex b/src/topology/main/quotient.tex index e1ace76..5b8945c 100644 --- a/src/topology/main/quotient.tex +++ b/src/topology/main/quotient.tex @@ -26,8 +26,8 @@ Let $X$ be a topological space, $\sim$ be an equivalence relation on $X$, then there exists $(\td X, \pi)$ such that: \begin{enumerate} \item $\td X$ is a topological space with ground set $X/\sim$. - \item $\pi$ is constant on each equivalence class of $\sim$. \item $\pi \in C(X; \td X)$. + \item $\pi$ is constant on each equivalence class of $\sim$. \item[(U)] For any pair $(Y, f)$ satisfying (1), (2), and (3), there exists a unique $\td f \in C(\td X; Y)$ such that the following diagram commutes: \[ \xymatrix{