Image:Projective module.png

La bildo estas kopiita de wikipedia:en. La originala priskribo estas:

Illustration of defining property of projective modules. The file was created by Axel Boldt with the Xy-Pic package for TeX; it is in the public domain. The source code, also in the public domain, was the following:

% Produce a postscript file from this input with tex and dvips.

% Loading the XY-Pic package:
\input xy
\xyoption{all}

% Using postscript driver for smoother curves
\xyoption{ps}
\xyoption{dvips}

% No need for page numbers
\nopagenumbers

$$
\xymatrix{ %Our diagram is a 2x2 matrix with the upper left entry emtpy
 & N\ar@{->>}[d]^f\\
P\ar@{.>}[ur]^{\exists h}\ar[r]^g & M
}
$$

\end

This image has been released into the public domain by its author, AxelBoldt. This applies worldwide. In some countries this may not be legally possible; if so: AxelBoldt grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

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• (del) (cur) 12:58, 11 December 2003 . . en:User:AxelBoldt AxelBoldt ( en:User_talk:AxelBoldt Talk) . . 183x167 (1872 bytes) (Illustration of defining property of projective modues)