array umgebung ergibt merkwuerdigen Fehler

Hallo

Folgendes Minimal Beispiel (TL2013)

,----
| \documentclass[12pt]{article}
| \usepackage{amssymb,amsfonts,amsmath,amsthm}
| \begin{document}
| \begin{equation*}
|   \begin{array}{l} 
|     [0, T + \delta)\\    
|     T^{*}<\infty\\ 
|     \exists \delta > 0 \\
|     [0, T + \delta)
|   \end{array}
| \end{equation*}
| \end{document}
`----


Führt zu einer  Fehlermeldung wegen der letzten Zeile im Array, 


,----
| 12 Error   Paragraph ended before \@argarraycr was complete.
|  LaTeX Error: \begin{array} on input line 5 ended by \end{document}.
|  Improper \prevdepth.
|  Missing } inserted.
|  Missing } inserted.
|  Missing \cr inserted.
|  Missing $ inserted.
|  You can't use `\end' in internal vertical mode.
|  LaTeX Error: \begin{array} on input line 5 ended by \end{document}.
|  Missing } inserted.
|  Emergency stop.
|   ==> Fatal error occurred, no output PDF file produced!
`----


der gleiche
Ausdruck in der ersten Zeile wird aber akzeptiert.

,----
| \documentclass[12pt]{article}
| \usepackage{amssymb,amsfonts,amsmath,amsthm}
| \begin{document}
| \begin{equation*}
|   \begin{array}{l} 
|     [0, T + \delta)\\    
|     T^{*}<\infty\\ 
|     \exists \delta > 0 
|   \end{array}
| \end{equation*}
| \end{document}
`----

funktioniert

Ich bin verwirrt.

Danke 

Uwe Brauer 
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