% One needs PDF2SVG to generate the SVG graph.
% Author: Ika
% Update Date: 11/22/2014

\documentclass{amsart}
\usepackage[paperwidth=160px, paperheight=145px, top=-18px, left=0px, right=0px, bottom=0px]{geometry}
\usepackage{amsmath,amssymb,nopageno}
\usepackage[all]{xy}
\begin{document}
\huge
\[
	\xymatrix@C+1em@R+1em{ 
	X_i \ar^{f_{ij}}[rr] \ar^{\phi_i}[dr] \ar@/_1em/_{\psi_i}[ddr] & & X_j \ar_{\phi_j}[dl] \ar@/^1em/^{\psi_j}[ddl] \\
	& X \ar@{-->}^u[d] & \\
	& Y &
	}
\]
\end{document}