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``Monoid actions'' by porton on 2008-12-26 15:42:55
On PlanetMath are defined group actions.

In the book "Abstract and Concrete Categories" (http://katmat.math.uni-bremen.de/acc/acc.pdf) I found the definition of monoid actions. Are these a generalization of group actions? Should "monoid action" be added to the encyclopedia?
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Victor Porton - http://www.mathematics21.org
* Algebraic General Topology and Math Synthesis
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