This math image could be re-created using vector graphics as an SVG file. This has several advantages; see Commons:Media for cleanup for more information. If an SVG form of this image is available, please upload it and afterwards replace this template with {{vector version available|new image name}}.
It is recommended to name the SVG file “Model category lifting.svg”—then the template Vector version available (or Vva) does not need the new image name parameter.
DescriptionModel category lifting.png
English: Diagram of lifting property, as in the definition of a model category
Date
04:24, 9 January 2010 (UTC)
Source
Own work (Original text: I (Selinger (talk)) created this work entirely by myself.)
I, the copyright holder of this work, release this work into the public domain. This applies worldwide. In some countries this may not be legally possible; if so: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.
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{{Information |Description = Diagram of lifting property, as in the definition of a model category |Source = I (~~~) created this work entirely by myself. |Date = ~~~~~ |Author = ~~~ |other_versions = }}