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view it/figs/undo-simple.dot @ 1085:b71b3f734904

2.4.2 first para unfinished
author Zhaoping Sun <zhaopingsun@gmail.com>
date Fri Nov 20 23:21:46 2009 -0500 (2009-11-20)
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1 digraph undo_simple {
2 "prima modifica" -> "seconda modifica";
3 "seconda modifica" -> "ritira la\nseconda modifica";
4 }